Trichlorofluoromethane

HCID 6389CAS 75-69-4

Grundinformationen

Standard-SMILES
FC(Cl)(Cl)Cl
InChIKey
CYRMSUTZVYGINF-UHFFFAOYSA-N
Summenformel
CCl3F
Durchschnittliche Molmasse
137,36 g/mol
Monoisotopische Masse
135,90496126

Überblick

Trichlorofluoromethane appears as a clear light colored liquid. Nearly odorless. Denser than water. Poses low acute health hazard to humans. Primary hazard is to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways.

Namen und Bezeichner

Bevorzugter Name
Trichlorofluoromethane
IUPAC
trichloro(fluoro)methane
Lokaler Name
Trichlorfluormethan
Englischer Name
Trichlorofluoromethane
Summenformel
CCl3F
Molmasse
137.37

Namen und Synonyme

TrichlorofluoromethaneFluorotrichloromethane75-69-4trichloro(fluoro)methaneTrichloromonofluoromethaneFluorochloroformCFC-11Algofrene type 1Freon MFArcton 9Eskimon 11Trichlorofluorocarbon
Weitere Namen anzeigen
CFCl3CCl3Ff11f-11Trigonox 27TrichlorfluormethanMethane, trichlorofluoro-
FREON 11Refrigerant 11Isotron 11Arcton 11Frigen 11MonofluorotrichloromethaneElectro-CF 11Ledon 11

Datenbank-Bezeichner

CAS
75-69-4
PubChem CID
6389
DTXSID
DTXSID5021384
ChEMBL
CHEMBL348290
ChEBI
CHEBI:48236
UNII
990TYB331R
EC Number
200-892-3
Nikkaji
J1.461C

Eigenschaften

Berechnete Struktureigenschaften

XLogP
2,5
Polarare Oberfläche (TPSA)
0 Ų
H-Brücken-Donoren
0
H-Brücken-Akzeptoren
1
Frei drehbare Bindungen
0
Schwere Atome
5

Experimentelle und physikochemische Eigenschaften

Chemical ClassesVolatile Organic Compound (VOC)
SolventsSolvents -> Chlorofluorocarbons
SpringerMaterials PropertiesDunham energy parameter
PesticidesPesticide -> EPA IRIS
LogP · 2 Einträge

log Kow = 2.53

2.53

Odor · 3 Einträge

In concentration of less than 20% (by volume in air), trichlorofluoromethane is odorless, in higher concentration, its odor is mild and somewhat ethereal.

Faint ethereal and sweetish odor

Characteristic; quality: sweet, pleasant to unpleasant

Physikochemische Eigenschaften

Schmelzpunkt
-111 °C · -111°C
Siedepunkt
23.8 °C · 23.8°C
Dichte
1.494 · 1.494
Dampfdichte
5.04 · 5.04 (vs air)
Dampfdruck
12.85 psi · 12.85 psi ( 20 °C) &_& 39.17 psi ( 55 °C)
Brechungsindex
1.382 · 1.382

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 6 Einträge

This chemical does not meet GHS hazard criteria for 11.6% (8 of 69) of reports.

Warning

H312 (56.5%): Harmful in contact with skin [Warning Acute toxicity, dermal]

P280, P302+P352, P317, P321, P362+P364, P501, and P502 (click each P-code to see the statement)

Aggregated GHS information provided per 69 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

Gefahrenhinweise

Regulatory Information · 4 Einträge

Chemical: Methane, trichlorofluoro-

Hazard Traits - Hematotoxicity; Hepatotoxicity and Digestive System Toxicity

Trichlorofluoromethane: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelNon-Flammable Gas
Fire Hazards · 2 Einträge

Special Hazards of Combustion Products: Produces irritating and toxic products when heated to decomposition temperatures. (USCG, 1999)

Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

Health HazardsBreathing concentrations approaching 10% in air will cause dizziness and drowsiness. Contact with tissues may cause frostbite. (USCG, 1999)
Hazards Summary · 1 Eintrag

Fluorotrichloromethane is in the list of Some volatile substances which may be abused by inhalation published on the web site of the U.N. International Drug Control Programme, indicating its potential to cause narcosis in workers. [Reference #1] Evaporating liquid can cause frostbite; Inhalation of high concentrations can cause CNS depression and cardiac arrhythmias; [ICSC]

FDA Requirements · 2 Einträge

The Food and Drug Administration (FDA), after consultation with the Environmental Protection Agency (EPA), is amending FDA's regulation on the use of ozone-depleting substances (ODSs) in selfpressurized containers to remove the essential-use designations for flunisolide, triamcinolone, metaproterenol, pirbuterol, albuterol and ipratropium in combination, cromolyn, and nedocromil used in oral pressurized metered-dose inhalers (MDIs). The Clean Air Act requires FDA, in consultation with the EPA, to determine whether an FDA-regulated product that releases an ODS is an essential use of the ODS. FDA has concluded that there are no substantial technical barriers to formulating flunisolide, triamcinolone, metaproterenol, pirbuterol, albuterol and ipratropium in combination, cromolyn, and nedocromil as products that do not release ODSs, and therefore they will no longer be essential uses of ODSs as of the effective dates of this rule. MDIs for these active moieties containing an ODS may not be marketed after the relevant effective date. DATES: Removal of Part 2.125(e)(2)(iii) and 2.125(e)(4)(vii) is effective June 14, 2010. Removal of Part 2.125(e)(1)(v) and 2.125(e)(4)(iv) is effective December 31, 2010. Removal of Part 2.125(e)(1)(iii) is effective June 30, 2011. Removal of 2.125(e)(2)(iv) and Part 2.125(e)(4)(viii) is effective December 31, 2013. /Ozone-Depleting Substances/

Use of ozone-depleting substances in foods, drugs, devices, or cosmetics. (a) As used in this section, ozone-depleting substance (ODS) means any class I substance as defined in 40 CFR part 82, appendix A to subpart A, or class II substance as defined in 40 CFR part 82, appendix B to subpart A. (b) Except as provided in paragraph (c) of this section, any food, drug, device, or cosmetic that is, consists in part of, or is contained in an aerosol product or other pressurized dispenser that releases an ODS is not an essential use of the ODS under the Clean Air Act. (c) A food, drug, device, or cosmetic that is, consists in part of, or is contained in an aerosol product or other pressurized dispenser that releases an ODS is an essential use of the ODS under the Clean Air Act if paragraph (e) of this section specifies the use of that product as essential. For drugs, including biologics and animal drugs, and for devices, an investigational application or an approved marketing application must be in effect, as applicable. ... (e) The use of ODSs in the following products is essential: ... (2) Metered-dose short-acting adrenergic bronchodilator human drugs for oral inhalation. Oral pressurized metered-dose inhalers containing the following active moieties: ... (iv) Pirbuterol. ... (4) Other essential uses. (iii) Anesthetic drugs for topical use on accessible mucous membranes of humans where a cannula is used for application. ... (vi) Metered-dose atropine sulfate aerosol human drugs administered by oral inhalation. ... (viii) Metered-dose ipratropium bromide and albuterol sulfate, in combination, administered by oral inhalation for human use. (ix) Sterile aerosol talc administered intrapleurally by thoracoscopy for human use. /Ozone-Depleting Substances/

Sicherheit und Schutzausrüstung

Fire Fighting · 2 Einträge

Excerpt from ERG Guide 126 [Gases - Compressed or Liquefied (Including Refrigerant Gases)]:

In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep drums, etc., cool by spraying with water.

First Aid Measures · 3 Einträge

Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.

ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

First Aid · 2 Einträge

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

(General first aid procedures)

Safe StorageSeparated from incompatible materials. See Chemical Dangers. Cool.
Firefighting Hazards · 1 Eintrag

Contact with certain finely divided metals may cause exothermic reaction and/or explosive combinations under specific conditions (e.g. very high temperatures and/or appropriate pressures and in the presence of oxygen). Decomposition products include hydrochloric acid, hydrofluoric acid, and carbonyl halides.

Exposure Control and Personal Protection1000.0 [ppm]

Toxikologische Informationen

Body Burden · 1 Eintrag

7 of 8 samples of mother's milk from 4 urban sites in US positive for trichlorfluoromethane(1). It was detected in 4 of 8 samples of respired air at a range of 0.007 to 0.041 ug/hr, positive subjects having been previously occupationally exposed (laboratory technicians)(2).

Interactions · 5 Einträge

The minimal concn that elicited cardiac arrhythmia in the anesthetized monkey was 5% CFC 11 inhaled for less than 5 min. In a group of seven monkeys, two developed ventricular premature beats and atrioventricular block. The sensitivity of the heart to arrhythmia was increased by infusion of epinephrine.

... Focal myocardial necrosis /observed/ in dogs exposed for 2 consecutive days to aerosols containing FC 11 as propellant, & isoproterenol as the bronchodilator drug.

The minimal conc that increases /airway/ resistance in anesthetized mouse is 1%, which is blocked by pretreatment with atropine.

The induction of pentobarbital anesthesia reduced the incidence of arrhythmia and increased the threshold concentration to 10%. CFC 11 Rats that developed cardiac necrosis elicited by isoproterenol injections showed a reduction in threshold concentration to 5%. Likewise, those that developed pulmonary arterial thrombosis showed a similar increase in the proarrhythmic activity of CFC 11. The induction of pulmonary emphysema did not increase cardiac sensitivity. Adrenalectomy or injection of drugs that block cardiac adrenergic receptors protected the heart from CFC 11 induced arrhythmia.

/In humans/ a 10 to 90% mixture of CFC-11 & CFC-12, respectively, caused more severe respiratory effects than either fluorocarbon inhaled singly.

Target Organs · 2 Einträge

Cardiovascular

Skin, respiratory system, cardiovascular system

Environmental Fate · 3 Einträge

TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 2.53(2) and a regression-derived equation(3), indicates that trichlorofluoromethane is expected to have moderate mobility in soil(SRC). Volatilization of trichlorofluoromethane from moist soil surfaces is expected to be an important fate process(SRC) given a Henry's Law constant of 9.70X10-2 atm-cu m/mole(4). Trichlorofluoromethane is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 803 mm Hg at 25 °C(5). Biodegradation in terrestrial systems is not expected under aerobic conditions(6), but may proceed slowly under anaerobic conditions(7).

AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value of 160(SRC), determined from a log Kow of 2.53(2) and a regression-derived equation(3), indicates that trichlorofluoromethane is not expected to adsorb to suspended solids and sediment(SRC). Volatilization from water surfaces is expected(4) based upon a Henry's Law constant of 9.70X10-2 atm-cu m/mole(5). Using this Henry's Law constant and an estimation method(4), volatilization half-lives for a model river and model lake are 3.4 hours and 4.6 days, respectively(SRC). According to a classification scheme(6), an estimated BCF of 22(SRC), from its log Kow(2) and a regression-derived equation(3), suggests the potential for bioconcentration in aquatic organisms is low(SRC). Biodegradation in aquatic systems is not expected under aerobic conditions(7), but may proceed slowly under anaerobic conditions(8).

ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), trichlorofluoromethane, which has a vapor pressure of 803 mm Hg at 25 °C(2), is expected to exist solely as a gas in the ambient atmosphere. Trichlorofluoromethane is very stable in the troposphere having a half-life of 52-207 years(3,4). Once in the upper stratosphere, it is dissociated through photolysis, reaction with hydroxyl radical and excited atomic oxygen resulting in the release of chlorine. These chlorine atoms then become part of a catalytic process that contributes to the destruction of the ozone layer(5). In the stratosphere this compound will slowly photolyze to release chlorine atoms which in turn participates in the catalytic removal of stratospheric ozone(6); the ozone depletion potential for trichloroflouromethane is 1.0(7).

Adverse EffectsNeurotoxin - Acute solvent syndrome
Exposure Routes · 2 Einträge

The substance can be absorbed into the body by inhalation.

inhalation, ingestion, skin and/or eye contact

Regulatorische Informationen

FDA Requirements · 2 Einträge

The Food and Drug Administration (FDA), after consultation with the Environmental Protection Agency (EPA), is amending FDA's regulation on the use of ozone-depleting substances (ODSs) in selfpressurized containers to remove the essential-use designations for flunisolide, triamcinolone, metaproterenol, pirbuterol, albuterol and ipratropium in combination, cromolyn, and nedocromil used in oral pressurized metered-dose inhalers (MDIs). The Clean Air Act requires FDA, in consultation with the EPA, to determine whether an FDA-regulated product that releases an ODS is an essential use of the ODS. FDA has concluded that there are no substantial technical barriers to formulating flunisolide, triamcinolone, metaproterenol, pirbuterol, albuterol and ipratropium in combination, cromolyn, and nedocromil as products that do not release ODSs, and therefore they will no longer be essential uses of ODSs as of the effective dates of this rule. MDIs for these active moieties containing an ODS may not be marketed after the relevant effective date. DATES: Removal of Part 2.125(e)(2)(iii) and 2.125(e)(4)(vii) is effective June 14, 2010. Removal of Part 2.125(e)(1)(v) and 2.125(e)(4)(iv) is effective December 31, 2010. Removal of Part 2.125(e)(1)(iii) is effective June 30, 2011. Removal of 2.125(e)(2)(iv) and Part 2.125(e)(4)(viii) is effective December 31, 2013. /Ozone-Depleting Substances/

Use of ozone-depleting substances in foods, drugs, devices, or cosmetics. (a) As used in this section, ozone-depleting substance (ODS) means any class I substance as defined in 40 CFR part 82, appendix A to subpart A, or class II substance as defined in 40 CFR part 82, appendix B to subpart A. (b) Except as provided in paragraph (c) of this section, any food, drug, device, or cosmetic that is, consists in part of, or is contained in an aerosol product or other pressurized dispenser that releases an ODS is not an essential use of the ODS under the Clean Air Act. (c) A food, drug, device, or cosmetic that is, consists in part of, or is contained in an aerosol product or other pressurized dispenser that releases an ODS is an essential use of the ODS under the Clean Air Act if paragraph (e) of this section specifies the use of that product as essential. For drugs, including biologics and animal drugs, and for devices, an investigational application or an approved marketing application must be in effect, as applicable. ... (e) The use of ODSs in the following products is essential: ... (2) Metered-dose short-acting adrenergic bronchodilator human drugs for oral inhalation. Oral pressurized metered-dose inhalers containing the following active moieties: ... (iv) Pirbuterol. ... (4) Other essential uses. (iii) Anesthetic drugs for topical use on accessible mucous membranes of humans where a cannula is used for application. ... (vi) Metered-dose atropine sulfate aerosol human drugs administered by oral inhalation. ... (viii) Metered-dose ipratropium bromide and albuterol sulfate, in combination, administered by oral inhalation for human use. (ix) Sterile aerosol talc administered intrapleurally by thoracoscopy for human use. /Ozone-Depleting Substances/

RCRA Requirements · 2 Einträge

U121; As stipulated in 40 CFR 261.33, when trichloromonofluoromethane as a commercial chemical product or manufacturing chemical intermediate or an off-specification commercial chemical product or a manufacturing chemical intermediate, becomes a waste, it must be managed according to Federal and/or State hazardous waste regulations. Also defined as a hazardous waste is any residue, contaminated soil, water, or other debris resulting from the cleanup of a spill, into water or on dry land, of this waste. Generators of small quantities of this waste may qualify for partial exclusion from hazardous waste regulations (40 CFR 261.5).

F002; When trichlorofluoromethane is a spent halogenated solvent, it is classified as a hazardous waste from a nonspecific source (F002), as stated in 40 CFR 261.31, and must be managed according to state and/or federal hazardous waste regulations.

TSCA Requirements · 5 Einträge

(a) After October 15, 1978, no person may manufacture, except to import, any fully halogenated chlorofluoroalkane for any aerosol propellant use except ... for use in an article which is a food, food additive, drug, cosmetic, or device exempted under 15 U.S.C. 2602 (21 CFR 2.125) ... for those essential uses listed in 40 CFR 762.58 ... for exempted uses listed in 40 CFR 762.59; (b) After December 15, 1978, no person may import into the customs territory of the United States any fully halogenated chlorofluoroalkane, whether as a chemical substance or as a component of a mixture or article, for any aerosol propellant use except ... for use in an article which is a food, food additive, drug, cosmetic, or device exempted under 15 U.S.C. 2602 (21 CFR 2.125) ... for those essential uses listed in 40 CFR 762.58 ... for exempted uses listed in 40 CFR 762.59; (c) Every person manufacturing fully halogenated chlorofluoroalkanes for aerosol propellant uses after October 15, 1978 must obtain a signed statement ... for aerosol propellant uses permitted under 40 CFR Part 762 or 21 CFR 2.125, or ... for other uses. /Fully halogenated chlorofluoroalkanes/

(a) After December 15, 1978, no person may process any fully halogenated chlorofluoroalkane into any aerosol propellant article except ... for use in an article which is a food, food additive, drug, cosmetic, or device exempted under 15 U.S.C. 2602 (21 CFR 2.125) ... for those essential uses listed in 40 CFR 762.58 ... for exempted uses listed in 40 CFR 762.59; (b) After December 15, 1978 no person may process any fully halogenated chlorofluoroalkane into any aerosol propellant article intended for export except ... for use in an article which is a food, food additive, drug, cosmetic, or device exempted under 15 U.S.C. 2602 (21 CFR 2.125) ... for those essential uses listed in 40 CFR 762.58 ... for exempted uses listed in 40 CFR 762.59. /Fully halogenated chlorofluoroalkanes/

After December 15, 1978, no person may distribute in commerce any fully halogenated chlorofluoroalkane for processing into any aerosol propellant article except ... for use in an article which is a food, food additive, drug, cosmetic, or device exempted under 15 U.S.C. 2602 (21 CFR 2.125) ... for those essential uses listed in 40 CFR 762.58 ... for exempted uses listed in 40 CFR 762.59. /Fully halogenated chlorofluoroalkanes/

The following aerosol propellant uses of fully halogenated chlorofluoroalkanes are essential and exempt from 40 CFR 762.45, 40 CFR 762.50 and 40 CFR 762.55: (a) Mercaptan stench warning devices; (b) Release agents for molds used in the production of plastic and elastomeric materials; (c) Flying insect pesticides ... for use in nonresidential food handling areas ... for space spraying of aircraft; (d) Diamond-grit spray; (e) Nonconsumer articles used as cleaner-solvents, lubricants, or coatings for electrical or electronic equipment; (f) Articles necessary for safe maintenance and operation of aircraft; (g) Uses essential to the military preparedness of the United States as determined by the Administrator and the Secretary of Defense; (h) Pharmaceutical rotary tablet press punch lubricants; (i) Automatic timed-release insecticide dispensing system for facilities in which tobacco is stored for three or more years for use from May 18, 1981 to December 31, 1981. /Fully halogenated chlorofluoroalkanes/

Special exemptions: (a) Inkless fingerprinting systems until August 1, 1981; (b) ... For producers of pyrethrin pesticide formulations; ... (c) Effective June 1, 1982, Virginia Chemicals Inc. (VCI) may process chlorofluorocarbons (CFCs) for incorporation into its automatic timed-release insecticide dispensing A-System customers for use before December 31, 1982 ... . /Fully halogenated chlorofluorocarbons/

FIFRA Requirements · 2 Einträge

As the federal pesticide law FIFRA directs, EPA is conducting a comprehensive review of older pesticides to consider their health and environmental effects and make decisions about their continued use. Under this pesticide reregistration program, EPA examines newer health and safety data for pesticide active ingredients initially registered before November 1, 1984, and determines whether the use of the pesticide does not pose unreasonable risk in accordance to newer saftey standards, such as those described in the Food Quality Protection Act of 1996. Pesticides for which EPA had not issued Registration Standards prior to the effective date of FIFRA '88 were divided into three lists based upon their potential for human exposure and other factors, with List B containing pesticides of greater concern than those on List C, and with List C containing pesticides of greater concern than those on List D. Trichloromonofluoromethane is found on List D. Case No: 4042; Pesticide type: insecticide; Case Status: No products containing the pesticide are actively registered ... The case /is characterized/ as "cancelled." Under FIFRA, pesticide producers may voluntarily cancel their registered products. EPA also may cancel pesticide registrations if registrants fail to pay required fees or make/meet certain reregistration commitments, or if EPA reaches findings of unreasonable adverse effects.; Active ingredient (AI): Trichloromonofluoromethane; AI Status: The active ingredient is no longer contained in any registered pesticide products ... "cancelled."

Ninety days after publication of this notice the ingredients /including trichloromonofluoromethane/ ... will be removed from Reregistration List D, and all associated registrations will be cancelled ... .

Atmospheric Standards · 1 Eintrag

This action promulgates standards of performance for equipment leaks of Volatile Organic Compounds (VOC) in the Synthetic Organic Chemical Manufacturing Industry (SOCMI). The intended effect of these standards is to require all newly constructed, modified, and reconstructed SOCMI process units to use the best demonstrated system of continuous emission reduction for equipment leaks of VOC, considering costs, non air quality health and environmental impact and energy requirements. Trichlorofluoromethane is produced, as an intermediate or a final product, by process units covered under this subpart.

CERCLA Reportable Quantities · 1 Eintrag

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 5000 lb or 2270 kg. The toll free number of the NRC is (800) 424-8802. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

Sicherheitsdaten

OEL
Ceiling: 1000 ppm (5600 mg/m3)
wgk
3
IDLA
2,000 ppm
tsca
TSCA listed
ridadr
3082
RTECS-Nr.
PB6125000

Chemie und Industrie

Pharmakologische Informationen

Mechanism of Action · 1 Eintrag

... The mechanism of FC-11 cardiotoxicity ... /originates/ from irritation of the respiratory tract which in turn reflexly influences the heart rate even prior to absorption of the fluorocarbon, followed by direct depression of the heart after absorption. FC-11 causes only depression of respiratory minute volume that is not preceded by stimulation of breathing. There is ultimate cessation of respiration, which is a manifestation of generalized depression of the CNS by FC-11.

Biological Half-Life · 5 Einträge

The distribution half-life of the common fluorocarbons (Freon 11, Freon 12) averages 13 to 14 seconds; the elimination half-life is longer (1.5 hours) because of slower release from fat stores.

... Fluorotrichloromethane (R-11) concentrations in urine--in contrast to blood or alveolar air--depend on the dose taken up. After termination of exposure, R-11 concentrations in alveolar air and in blood are excreted with biological half-lives of seven and eleven minutes respectively during the first phase of elimination and with 1.8 and 1.0 hr respectively during the second phase of elimination. ...

Volunteers exposed to CFC-11 at 3751 mg/cu m (657 ppm) for 150-210 min showed half-lives for the initial and second phases of elimination from venous blood of 11 min and 1 hr respectively. Half-lives for the initial and second phases of CFC-11 elimination in alveolar air were 7 min and 1.8 hr, respectively.

...Analysis of the human data also utilized a two-compartment pharmacokinetic model and found initial elimination half-times from blood and alveolar air of 7 and 11 minutes, respectively and half-times for the slow elimination phase from blood and alveolar air of 1.8 to 1.0 hour.

Analyses of a two-compartment pharmacokinetic model in dogs found an initial elimination half-time of 0.6 +/- 0.25 minute.

Metabolism/Metabolites · 5 Einträge

Dogs /were/ exposed for 6-20 minutes to levels of </= 5000 ppm of radiolabeled CFC-11. Virtually all was recovered unchanged within 1 hr. Traces od labeled CO2 were found in the expired air ans may have represented impurities in the test sample. The authors concluded that <1% of the inhaled dose of CFC-11 was metabolised.

When trichlorofluoromethane was inhaled by humans, recovery of intact cmpd in exhaled air was 79-99% & in urine, 0.07-0.09%, & metabolites amt to 0.2% or less ... .

Rat-liver microsomes dechlorinate trichlorofluoromethane to dichlorofluoromethane. This reaction ... is mediated via the hepatic microsomal P450 enzyme system. Trichlorofluoromethane & dichlorofluoromethane admin as high acute inhalation dosages were expired unchanged by both dogs & rabbits.

Theoretical metabolites of trichlorofluoromethane are dichlorofluoromethane & tetrachlorodifluoroethane. No evidence of free-radical formation in rats or mice has been shown; nor is there evidence of significant metabolism of trichlorofluoromethane ...

For more Metabolism/Metabolites (Complete) data for TRICHLOROFLUOROMETHANE (6 total), please visit the HSDB record page.

Absorption, Distribution and Excretion · 5 Einträge

Pulmonary uptake of inhaled CFC-11 by rabbits and dogs is prompt. Peak circulating concentrations after exposure at 4500 to 5000 ppm were achieved in 15 seconds with steady-state reached at 20 minutes. Elimination is relatively rapid. Dogs exhaled within 1 hr essentially all the CFC-11 inhaled during a 6 to 20 min exposure at 5,000 ppm. Inhaled CFC-11 was promptly detected in blood, cerebrospinal fluid, bile, and urine of anesthetized rabbits and dogs ... . Unanesthetized dogs exposed to 1,000-10,000 ppm for 10 minutes showed a rapid rise in blood conc of CFC-11 during the first 5 min, which was followed by a rapid and then more gradual decline after exposure.

In male and female adult humans, 79% to 100% of inhaled (14)C-CFC-11 was exhaled within the first hour after a 7- or 17- minute inhalation at 1000 ppm. Only 0.12% of the inhaled compound was recovered as the carbon dioxide metabolite and only 0.08% appeared in the urine. At 30 minutes, retention of the labeled dose (approximately 7 mg Cl-CFC-11) inhaled in a single breath was 23% versus 10%, 20%, and 12% for comparable doses of CFC-12 1,1,2-trichloro-1,1,2-trifluoroethane (CFC-113), and dichlorotetrafluoroethane (CFC-114), respectively.

Radiocarbon-labeled trichlorofluoromethane (FC-11; (14)CC13F) and dichlorodifluormethane (FC-12; (14)CC12F2) were separately inhaled by a female subject and a male subject. A predetermined volume of fluorocarbon (1000 ppm; 100 muCi) in air was delivered through a non-rebreathing system and a tight-fitting face mask for 7-17 minutes. Total expired gases were collected during fluorocarbon exposure and afterward until no radioactivity was detectable. Expired (14)CO2 and (14)C-fluorocarbon were assayed. Urine was collected for 72 hours and assayed for nonvolatile radioactivity. Total recoveries of FC-11 were 99.5 and 79.4 per cent in the woman and the man, respectively. Total recoveries of FC-12 were 95.4 and 103.2 per cent. Traces of radioactivity were found in urine (FC-11, 0.07 and 0.09 per cent; FC-12, 0.02 and 0.03 per cent) and in exhaled carbon dioxide (FC-11, 0.13 and 0.10 per cent; FC-12, 0.08 per cent in both subjects). Total metabolites were equal to or less than 0.2 per cent of the administered dose. The amount of radioactivity in urine was insufficient to permit identification of possible fluorocarbon metabolites. The trace of metabolites could be products of radiolabeled impurities.

A free compartment open model was proposed for disposition of iv trichlorofluoromethane in dogs with average half-lives of 3.2, 16 and 93 min for 3 disposition phases. Tissue compartment distribution following a single dose showed that about 2 hr were required to achieve pseudo distribution equilibrium, following which more than 90% of the drug remaining in the body was retained in tissue compartments.The volume of distribution was approximately 6 times the body weight in terms of blood concn and about 30% of the propellant was cleared from blood passing through the lungs in each cycle. Disposition of propellant followed dose independent kinetics after multiple dosing, and accumulation in tissues continued for a much longer period, resulting in high tissue compartment levels.

For more Absorption, Distribution and Excretion (Complete) data for TRICHLOROFLUOROMETHANE (15 total), please visit the HSDB record page.

Verwendung und Herstellung

Uses · 6 Einträge

CFC-11 has been used as a blowing agent, a refrigerant, and an aerosol propellant. [ACGIH] Used in photography (film cleaner); [www.ci.tucson.az.us/arthazards/medium.html]

See CHLOROFLUOROCARBONS

Photographic Processing [Category: Other]

For trichlorofluoromethane (USEPA/OPP Pesticide Code: 000013) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

The active ingredient is no longer contained in any registered pesticide products ... "cancelled."

In refrigeration machinery requiring a refrigerant effective at negative pressures; as aerosol propellant /Former use/

Impurities · 1 Eintrag

Chlorofluoroalkanes (and also the alternative HCFCs and HFCs) produced on an industrial scale are subject to stringent standards. Impurities must not exceed the following limits (vol %): acids, 0; moisture, <0.001; higher-boiling fractions, <0.05; and other gases, 2. /Chlorofluoroalkanes/

U.S. Imports · 4 Einträge

(1978) 2.40X10+9 G (INCLUDES FLUOROCARBON 12)

(1982) 1.30X10+9 G (INCLUDES FLUOROCARBON 12)

(1985) 9.68X10+9 g

(1984) 3.95X10+9 g /COMBINATION OF TRICHLOROFLUOROMETHANE & DICHLORODIFLUOROMETHANE/

U.S. Production · 5 Einträge

(1978) 8.80X10+10 G

(1982) 6.40X10+10 G

(1988) 249,012,000 lb

(1989) 87,335,000 lb

For more U.S. Production (Complete) data for TRICHLOROFLUOROMETHANE (10 total), please visit the HSDB record page.

Consumption Patterns · 2 Einträge

Refrigeration/air conditioning, 43%; foam blowing agents, 20%; polymer precursors, 13%; solvent cleaning, 12% aerosol propellants, 2%; medical equipment sterilization, 3%; other, 7%. (1991). /Estimates are for CFC-11,-12,-113,-114,-115 and HCFC-22 only/

REFRIGERANTS, 39%; FOAM BLOWING AGENTS, 17%; SOLVENTS, 14%; FLUOROPOLYMERS, 14%; STERILANT GAS, 2%; AEROSOL PROPELLANTS, 2%; FOOD FREEZANT, 1%; OTHER, 8%; EXPORTS, 3% (1985) /FLUOROCARBONS/

Methods of Manufacturing · 5 Einträge

Carbon tetrachloride is reacted with antimony trifluoride in the presence of a small quantity of antimony pentachloride. The reaction produces a mixture of CCl3F and CCl2F2, which is readily separable by fractional distillation.

From carbon tetrachloride and hafnium, in the presence of fluorinating agents such as antimony tri- and penta-fluoride.

Carbon tetrachloride + hydrogen fluoride (Halogen exchange; coproduced with dichlorodifluormethane)

Natural gas + chlorine + hydrogen fluoride (Montedison single- step process; coproduced with dichlorodifluoromethane)

The most important commercial method for manufacturing CFCs and HCFCs is the successive replacement of chlorine by fluorine using hydrogen fluoride. The traditional, liquid-phase process uses antimony pentafluoride or a mixture of antimony trifluoride and chlorine as catalysts. Continuous vapor-phase processes that employ gaseous hydrogen fluoride in the presence of heterogenous chromium, iron, or fluorinated alumina catalysts also are widely used. Carbon tetrachloride, chloroform, and hexachloroethane (or tetrachloroethylene plus chlorine) are commonly used starting materials for one- and two-carbon chlorofluorocarbons. The extent of chlorine exchange can be controlled by varying the hydrogen fluoride concentration, the contact time, or the reaction temperature. /Chlorofluorocarbons and Hydrochlorofluorocarbons/

Anwendungen · 3 Einträge

BeschreibungTrichlorofluoromethane is a chlorofluorocarbon (CFC) which is commonly used as a refrigerant, a foaming or blowing agent in industry, a solvent, an aerosol propellant, and in chemical syntheses.Trichlorofluoromethane is a colorless, odorless gas at normal temperatures and pressures. Under high pressures as in cans, tanks or refrigerators it is in liquid form. When released from a pressurized container it evaporates almost instantly and can cause freezing at the point of release. At very high concentrations in air it may smell like ether. It is slightly soluble in water but evaporates quickly if exposed to air. The chemical formula for Trichlorofluoromethane is CFCL3.

OccurrenceTrichlorofluoromethane is man-made and its presence in the environment is due to releases from common household and industrial uses. It is extremely stable in the atmosphere and does not degrade naturally. It can also be produced as an industrial by-product wherever chlorine products are used; including small quantities which are formed by reaction of chlorine disinfectants with organic pollutants in water. It is released into the air by leaking refrigeration units and air conditioners and by spray paint, spray varnish, spray cosmetics and other sprays in which it has been used as a propellant. Since 1978 many uses of trichlorofluoromethane as a propellant have been prohibited by law in the U.S. It can still be used as a propellant in some specialized products used in businesses and industries. It may also be found in air emissions and waste waters from a number of industries particularly refrigeration, electronics and foam manufacturing.

VerwendenTrichlorofluoromethane is a coolant in conditioning systems. It is a bulking agent for polymer foams. It is also used as a degrease solvent for printed circuit boards and to dry clean textiles. It is used as an aerosol propellant in various industries.

Ergänzende Hinweise

DefinitionChEBI: A one-carbon compound that is methane in which the hydrogens have been replaced by three chlorine and one fluorine atom.

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