Grundinformationen
- Standard-SMILES
O=NCl- InChIKey
VPCDQGACGWYTMC-UHFFFAOYSA-N- Summenformel
- ClNO
- Durchschnittliche Molmasse
- 65,46 g/mol
- Monoisotopische Masse
- 64,9668413
Überblick
Nitrosyl chloride appears as a yellow to yellowish red gas. Liquefies at -5.5 °C. Very toxic by inhalation. Noncombustible, but accelerates burning of combustible material. Decomposed by water to form corrosive hydrochloric acid. Vapors heavier than air. Prolonged exposure to fire or heat can cause containers to rupture violently and rocket.
Namen und Bezeichner
- Bevorzugter Name
- Nitrosyl chloride
- IUPAC
- nitrosyl chloride
- Lokaler Name
- Nitrosylchlorid
- Englischer Name
- Nitrosyl chloride
- Summenformel
- ClNO
- Molmasse
- 65.46
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
2696-92-6- PubChem CID
- 17601
- DTXSID
DTXSID5051945- UNII
- NHE5I1E5H6
- EC Number
- 220-273-1
- Nikkaji
- J31.850G
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 0,7
- Polarare Oberfläche (TPSA)
- 29,4 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 2
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 3
- Formalladung
- 0
- Komplexität
- 12,3
Experimentelle und physikochemische Eigenschaften
Chemical Classes
Toxic Gases & Vapors -> Acid Halides
Corrosives
Density
1.36 at 21.74 °F (USCG, 1999) - Denser than water; will sink
2.99 G/L (GAS); 1.417 @ -12 °C (LIQ)
g/cm³
Relative density of the vapour/air-mixture at 20 °C (air = 1): 5.2
2.68 g/L
Solubility
SOL IN FUMING SULFURIC ACID
Solubility in water: reaction
Corrosivity
VERY CORROSIVE
ALUMINUM IS ATTACKED BY NITROSYL CHLORIDE WHEN COLD.
Boiling Point
21.6 °F at 760 mmHg (USCG, 1999)
21.6 °F
-5.5 °C
-5 - -6 °C
-5.5 °C @760 [mm Hg]
Melting Point
-74 °F (USCG, 1999)
-64.5 °C
-61.5 °C
-64 °C
-59.6 °C
Vapor Density
2.3 (Air=1)
Relative vapor density (air = 1): 2.3
Physikochemische Eigenschaften
- Schmelzpunkt
- -59.6 °C · -59.6°C
- Siedepunkt
- -5 · -5
- Dichte
- 1.417 · 1.417
- Dampfdichte
- 2.3 · 2.3
- Löslichkeit
- 2 O · reacts with H2O
- Aggregatzustand
- yellow-red-brown gas
- Farbe
- Orange-yellow gas condensing to a deep red liquid
- Geruch (Odor)
- irritating odor
- Wasserlöslichkeit
- 2 O; · decomposes in H2O; soluble fuming H2SO4 [HAW93]
- Spezifische Wärmekapazität
- 0.68 J/ · Cp(gas): 0.68 J/(g·K), at 25℃
- Henry's Law Constant
- 4.9 · 4.9×10-4 mol/(m3Pa) at 25℃, Burkholder et al. (2019)
- Dielectric constant
- 18 · 18.0(-12℃)
- LogP
- 0.351 · 0.351 (est)
- EPA chemische Informationen
- Nitrosyl chloride (2696-92-6)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Danger
H270 (100%): May cause or intensify fire; oxidizer [Danger Oxidizing gases]
P220, P244, P260, P264, P271, P280, P284, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P320, P321, P363, P370+P376, P403, P403+P233, P405, P410+P403, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 111 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Nitrosyl chloride: HSNO Approval: HSR001064 Approved with controls
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.)
Fire Hazards
Special Hazards of Combustion Products: Very toxic gases are generated when heated (USCG, 1999)
· Some may burn but none ignite readily.
Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
Health Hazards
Gas is highly toxic. Inhalation causes severe irritation of respiratory tract and damage to mucous membranes. Delayed effects, which include severe pulmonary edema, may not be apparent for several hours. (USCG, 1999)
· TOXIC and/or CORROSIVE; may be fatal if inhaled, ingested or absorbed through skin.
Reactivity Profile
NITROSYL CHLORIDE is an oxidizing agent. Dissociates into nitric oxide and chlorine on heating. Gives an explosive reaction when sealed in a tube with a residue of acetone and in the presence of platinum catalyst [Chem. Eng. News 35(43):60. 1967]. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].
Sicherheit und Schutzausrüstung
Fire Fighting
Excerpt from ERG Guide 125 [Gases - Toxic and/or Corrosive]:
In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water. NO direct contact with water.
First Aid Measures
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Accidental Release Measures
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· Do not touch or walk through spilled material.
First Aid
INHALATION: remove victim to fresh air; call a doctor; enforce complete rest until doctor arrives; observe at least 24 hours for delayed effects.
General First Aid:
Exposure Control and Personal Protection
· Wear positive pressure self-contained breathing apparatus (SCBA).
TIH (Toxic Inhalation Hazard) - Term used to describe gases and volatile liquids that are toxic when inhaled. Some are TIH materials themselves, e.g., chlorine, and some release TIH gases when spilled in water, e.g., chlorosilanes. [ERG 2016].
Fire Fighting Procedures
If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use water spray to knock-down vapors.
Disposal Methods
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.
Spillage Disposal
Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. Remove gas with fine water spray. Do NOT absorb in saw-dust or other combustible absorbents.
Preventive Measures
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
If material not involved in fire: Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Neutralize spilled material with crushed limestone, soda ash, or lime. Do not use water on material itself.
Personnel protection: Avoid breathing vapors. Keep upwind. ... Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water.
Toxikologische Informationen
Signs and Symptoms
Cough. Sore throat. Laboured breathing. Shortness of breath.
Redness. Pain. Skin burns.
Redness. Pain. Burns.
Human Toxicity Excerpts
Nitrosyl chloride is a very corrosive reddish yellow gas, which is said to be intensely irritating to the eyes and skin, and to be severely injurious to the lungs.
INTENSELY IRRITATING TO EYES, SKIN, MUCOUS MEMBRANES. INHALATION MAY CAUSE PULMONARY EDEMA, HEMORRHAGE.
Regulatorische Informationen
DHS Chemicals of Interest (COI)
Nitrosyl chloride
1.17
15
Weapons of Mass Effect chemical material that, if stolen or diverted, can be converted into weapons using simple chemistry, equipment, or techniques.
Sicherheitsdaten
- tsca
- TSCA listed
- ridadr
- UN 1069
- hazard_code
- C,T
- hazard_note
- Toxic/Corrosive
- hazard_class
- 2.3
- Giftige Stoffe Daten
- 2696-92-6(Hazardous Substances Data)
Chemie und Industrie
Verwendung und Herstellung
Uses
Used as a flour bleaching agent and a chemical intermediate; a byproduct formed during the use of aqua regia; [HSDB] Aqua regia is a mixture of 1 part nitric acid and 3 to 4 parts of hydrochloric acid used in metallurgy to test metals and to dissolve platinum, gold, and other metals. [Hawley]
Metal Extraction and Refining [Category: Industry]
BLEACHING SUBSTANCE FOR FLOUR
SYNTHETIC DETERGENTS; CATALYST; INTERMEDIATE
Chemical intermediate in the production of chlorine
Intermediate in the production of potassium nitrate
Methods of Manufacturing
REACTION OF CHLORINE AND SODIUM NITRATE
BEST PREPARED FROM NITROSYLSULFURIC ACID & DRY HYDROGEN CHLORIDE.
Anwendungen
VerwendenSynthetic detergents, catalyst, intermediate.
Darstellung
synthetischeNitrosyl chloride can be prepared by the reaction of nitric oxide with chlorine: 2NO + Cl2 → 2ClNOAlso, nitrosyl chloride is produced by the action of chlorine on sodium nitrate; or by the reaction of nitrosyl sulfuric acid with hydrochloric acid: NaNO3 + Cl2 → ClNO + NaClO2 ONHSO4 + HCl → ClNO + H2 SO4Nitrosyl chloride also is obtained as a byproduct in the manufacture of potassium nitrate from potassium chloride and nitric acid:In the above preparative method, nitrosyl chloride must be separated from nitric acid; otherwise, in the presence of pure and excess nitric acid, it can decompose to nitrogen dioxide and chlorine:2ClNO + HNO3 → 6NO2 + Cl2 +2H2OAlso, nitrosyl chloride can be synthesized from its elements by heating nitrogen, oxygen and chlorine gas at 400°C: N2 + O2 + Cl2 → 2ClNOFaraday obtained nitrosyl chloride by dissolving palladium in a mixture of hydrochloric and nitric acids (Faraday, M. Trans. Roy. Soc. (London), Vol. 136, pp. 48, 1846): Pd + HNO3 + 3HCl → PdCl2 + ClNO + 2H2O.
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Ergänzende Hinweise
DefinitionOne of the oxidizing agents in aqua regia.
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