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HCID 24648Erstellt: 27. Oktober 2026

Sulfuryldichlorid

SO2Cl2 · Sulfonyl chloride · Chlorosulfuric acid · furyL · SULPHURYL CHLORIDE · sulfuryldichloride · Sulfurylchlorid · Sulfonychloride

https://huagongshe.com/de/chemical/24648

Molekülstruktur von Sulfuryldichlorid

Identifikatoren & physikalische Daten

CAS No.7791-25-5
SummenformelCl2O2S
Durchschnittliche Molmasse134,97 g/mol
Monoisotopische Masse133,8996056 g/mol
SMILESO=S(=O)(Cl)Cl
InChIKeyYBBRCQOCSYXUOC-UHFFFAOYSA-N
PubChem CID24648
ChEMBLCHEMBL3186735
ChEBICHEBI:29291
EC No.232-245-6
DTXSIDDTXSID6029707
Lokaler NameSulfuryldichlorid

Chemische & physikalische Eigenschaften

XLogP1,2
Polarare Oberfläche (TPSA)42,5
H-Brücken-Donoren0
H-Brücken-Akzeptoren2
Frei drehbare Bindungen0
Schwere Atome5
Formalladung0
Komplexität85,3
StoffklassenToxic Gases & Vapors -> Acid HalidesCorrosives
SpringerMaterials PropertiesSchoenflies notation
GeruchVery pungent odor
Dichte1.67 at 68 °F (USCG, 1999) - Denser than waterwill sink1.6674 at 20 °C/4 °CRelative density (water = 1): 1.671.6674 @25 °C
Viscosity0.918 mPa-s at 0 °C0.595 mPa-s at 37.8 °C
Color/FormColorless, mobile liquid
LöslichkeitMiscible with benzene, toluene, ether, glacial acetic acid, and other org solventsSolubility in water: reactionMiscible with benzene, toluene, chloroform, ether, carbon tetrachloride and glacial acetic acid.reacts
Siedepunkt156.4 °F at 760 mmHg (USCG, 1999)69.3 °C69.1 °C69.1 °C @760 [mm Hg]
DecompositionWhen heated to decomposition it emits highly toxic fumes of /hydrogen chloride and sulfur oxides/.... if involved in a fire /sulfuryl chloride/ decomposes to produce chlorine, hydrogen chloride, oxides of sulfur, and other irritants.
Schmelzpunkt-54.1 °C
Dampfdichte4.6 (Air = 1)Relative vapor density (air = 1): 4.654.7 (vs air)
Dampfdruck140.0 [mmHg]Vapor pressure = 100 mm Hg at 17.8 °CVapor pressures. [Table#2248]Vapor pressure, kPa at 20 °C: 14.8100 [mm Hg] @17.8 °C100 mm Hg ( 17.8 °C)
Brechungsindexn20/D 1.443(lit.)
Flammpunkt69.1°C
LagerbedingungenHygroscopic, Room Temperature, under inert atmosphere
AggregatzustandLiquid
Wichte1.670 (20/20℃)
FarbeClear colorless to yellow
Spezifische WärmekapazitätCp(liquid): 0.99 J/(g·K)Cp(gas): 0.57 J/(g·K), at 25℃
Merck14,8980
Dielektrizitätskonstante9.2(22℃)
StabilitätReacts violently with water. Incompatible with acids, alcohols, bases, metals, amines, moisture.
InChI1S/Cl2O2S/c1-5(2,3)4
InChIKeyYBBRCQOCSYXUOC-UHFFFAOYSA-N
SMILESClS(Cl)(=O)=O
CAS Datenbank7791-25-5(CAS DataBase Reference)
NIST chemische InformationenSulfuryl chloride(7791-25-5)
EPA chemische InformationenSulfuryl chloride (7791-25-5)

Sicherheit & Vorschriften

GHS-EinstufungDangerH314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]P260, P261, P264, P264+P265, P271, P280, P284, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P319, P320, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)
Hazards IdentificationToxic/poison by inhalation (TIH/PIH)
Regulatorische InformationenChemical: Sulfuryl chlorideSulfuryl chloride is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfuryl chloride are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 17-12-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/1973Sulphuryl chloride: Does not have an individual approval but may be used under an appropriate group standardThe 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-KennzeichnungPoison Inhalation Hazard Corrosive
BrandgefahrenBehavior in Fire: Toxic and irritating gases are generated. (USCG, 1999)· EXCEPT FOR ACETIC ANHYDRIDE (UN1715), THAT IS FLAMMABLE, some of these materials may burn, but none ignite readily.Not combustible.
BrandpotenzialNot combustible ...
GesundheitsgefahrenVapors cause severe irritation of eyes and respiratory system. Liquid burns eyes and skin. If ingested, can cause severe burns of mouth and stomach. (USCG, 1999)· CORROSIVE and/or TOXICinhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death.

Anwendungen & Verwendung

Verwenden

Sulfuryl Chloride is a reagent used in the synthesis of catecholic flavonoids as telomerase inhibitors. It is also used to prepare (pyrenebutanamido)thiourea derivs. for anion PET chemosensors.

GefahrenübersichtCorrosive to skin[Quick CPC] High inhalation exposure may induce pneumonitis and pulmonary edema[ICSC] Sulfuryl chloride release HCl when spilled in water[ERG 2016] Even the vapors are corrosive to human skin and mucous membranes. Slowly decomposed by water producing sulfuric and hydrochloric acids[Merck Index] Reacts violently with water and is slowly hydrolyzed by moist air producing chlorosulfonic, sulfuric, and hydrochloric acidsReports of delayed onset pulmonary edema in humans following inhalation exposure[Reference #1] A lachrymator[CHEMINFO]
DOT-Nummer und Handbuch1834 137
Reaktive GruppeAcyl Halides, Sulfonyl Halides, and Chloroformates
EG-EinstufungSymbol: CR: 14-34-37S: (1/2)-26-45
UN-EinstufungUN Hazard Class: 8UN Pack Group: I
Special ReportsBG ChemieToxikological Bewertung. Sulfurylchlorid Nr. 179 (CAS Nr. 7791-25-5). ISSN 0937-4248. p. 14 (June 2000) is a review of the toxicological literature sponsored by BG Chemie. Copies in German or English are available upon request from the company or from a search of the company website (www.bgchemie.de).European Chemicals BureauIUCLID Dataset, Sulfuryl Chloride (CAS # 7791-25-5) contains a review of information on toxicology and use patters submitted to the European Union by industry as of 2000.
BrandbekämpfungExcerpt from ERG Guide 137 [Substances - Water-Reactive - Corrosive]:In case of fire in the surroundings, use appropriate extinguishing media. NO water. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.
Erste-Hilfe-MaßnahmenFresh 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.Rinse mouth. Do NOT induce vomiting.
Freisetungsmaßnahmen· 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 damaged containers or spilled material unless wearing appropriate protective clothing.
Erste HilfeCall a doctor.General First Aid:
Sichere LagerungSeparated from strong bases. Dry.
Firefighting HazardsCorrosive. Water reactive.
Expositionsschutz und Persönliche Schutzausrüstung· 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].
BrandbekämpfungsverfahrenExtinguish fire using agent suitable for surrounding fire. Do not use water if the sulfuryl chloride has been released.If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
LagerbedingungenWith caution, dilute alkali can be used to store sulfuryl chloride but some corrosion may occurlead, nickel, glass, Teflon, 310 stainless steel, or baked phenolics (tested for this service) are preferred.Storage and transport: In the United States sulfuryl chloride is classed as a material poisonous by inhalation, Zone A. Special regulations apply for packing, labeling, and transport. Transport classification: IMDG Code: Class 8. UN Code: 1834. Packing group: I. RID/ADR: Class 8, no 21 a. ADNR: Class 8, no 11 a. ICAP-TI/IATA-DGR: Prohibited.It is important to prevent exposure to atmospheric moisture and vent hydrogen chloride pressure that builds up. Sulfuryl chloride should also be protected form prolonged exposure to strong light.Store in a cool, dry, well-ventilated location. Separate from acids, alkalies, alcohols, amines, peroxides, metals, and water.
ReinigungsverfahrenStop or control the leak, if this can be done without undue risk. Approach release from upwind. Absorb in noncombustible material for proper disposal.
Freisetung ohne BrandExcerpt from ERG Guide 137 [Substances - Water-Reactive - Corrosive]:
EntsorgungsverfahrenSRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air qualitypotential migration in soil or watereffects on animal, aquatic, and plant lifeand conformance with environmental and public health regulations.Wear nitrile rubber gloves, laboratory coat, eye protection and, if necessary, a self-contained breathing apparatus. Cover the spill with a 1:1:1 mixture by weight of sodium carbonate or calcium carbonate, clay cat litter (bentonite) and sand. When the sulfuryl chloride has been absorbed, scoop the mixture into a plastic pail of cold water. Allow to stand for 24 hr. Test the pH of the solution and neutralize if necessary with sodium carbonate. Decant the solution to the drain flushing with 50 times its volume of water. Treat the solid residue as normal refuse.
Unerwünschte WirkungenDermatotoxin - Skin burns.
ExpositionspfadeThe substance can be absorbed into the body by inhalation of its vapour.
ToxizitätsübersichtThe acute toxicity of sulfuryl chloride following inhalation is high. In male Sprague-Dawley rats with head-only exposure to vapor a 4 h-LC50 of 878 mg/m3 was calculated. Clinical signs included nasal discharge and eye irritation. In humans, pulmonary edema of delayed onset has been reported after inhalation of sulfuryl chloride vapor. Sulfuryl chloride hydrolyzes slowly in moist air and reacts violently with water, forming chlorosulfonic acid, hydrochloric acid and sulfuric acid. Due to this hydrolytic reaction, sulfuryl chloride is corrosive to the skin, eyes and respiratory tract. Studies with sulfuryl chloride concerning sensitizing properties are not available. The hydrolysis products sulfuric acid and hydrochloric acid gave no indication for a sensitizing potential in humans and experimental animals. From a 14-day inhalation study with sulfuryl chloride in rats, a NOAEC could not be derived, since pneumonitis was still observed at the lowest exposure level of 17 mg/m3. The reported effects are in line with all other evidence regarding the chemical and biological properties, i.e. corrosivity of sulfuryl chloride and its hydrolysis products hydrochloric acid, sulfuric acid, and chlorosulfonic acid. Studies performed with sulfuric acid gave LOAECs in the range of 0.3 mg/m3, the LOAEC found in a 90-day study with hydrochloric acid was 15 mg/m3. All findings were confined to the site of first contact and can be explained by the irritating/corrosive properties of the acid. Sulfuryl chloride as well as the hydrolysis products hydrochloric acid, sulfuric acid and chlorosulfonic acid are all classified as corrosive and hydrochloric acid and chlorosulfonic acid are classified as irritant to the respiratory tract. No primary systemic effects were reported. Sulfuryl chloride did not show mutagenic activity in Ames tests with Salmonella typhimurium. A slight mutagenic activity was observed in only one tester strain without metabolic activation. However, this result was found to be not reproducible in further tests. As sulfuryl chloride decomposes to acids, the resulting change in pH may induce genotoxic effects such as chromosomal aberrations and other DNA damage in vitro and in vivo at the portal-ofentry. No carcinogenicity studies with sulfuryl chloride were identified. The hydrolysis products hydrochloric acid and sulfuric acid gave no clear indications for an increased tumor incidence after life-time exposure in laboratory animals. Studies with sulfuryl chloride concerning effects on fertility and development were not available and there were also no data on fertility effects for the hydrolysis products sulfuric acid and hydrochloric acid. Concerning developmental toxicity, the hydrolysis product sulfuric acid gave no indication for adverse effects in mice and rabbits after exposure via inhalation. Because sulfuryl chloride is a toxicant acting at the portal-of-entry, and because it is unlikely to reach the reproductive organs or the embryo/fetus, toxicity to reproduction or developmental toxicity in mammals are not likely to occur following exposure to sulfuryl chloride by any route. In humans, several epidemiological studies have suggested a relationship between exposure to strong inorganic acid mists containing sulfuric acid and an increased incidence of laryngeal cancer. IARC (1992) has concluded that occupational exposure to strong-inorganic-acid mists containing sulfuric acid is carcinogenic to humans" (Group 1). Concerns have been raised that confounding factors could not be fully excluded. The effects might be a secondary finding to be expected after prolonged exposure to strong acid due to the cytotoxicity and consequent stimulus to increased cell proliferation.
Signs and SymptomsBurning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed.Redness. Skin burns. Pain. Blisters.Redness. Pain. Loss of vision. Severe deep burns.Abdominal pain. Burning sensation. Shock or collapse. See Inhalation.
ICSC Environmental DataThis substance may be hazardous to the environment. Special attention should be given to water quality.
Human Toxicity Excerpts/SIGNS AND SYMPTOMS/ /It is/ ... corrosive liquid which in contact with the body can cause burnsvapor is a respiratory irritant./SIGNS AND SYMPTOMS/ Corrosive. Causes severe eye and skin burns. May be harmful if absorbed through skin or inhaled. Symptoms of overexposure include burning, coughing, wheezing, headache, nausea, vomiting, respiratory inflammation, spasm, pulmonary edema, death.[Fire Protection Guide to Hazardous Materials. 13 ed. Quincy, MA: National Fire Protection Association, 2002., p. 49-140]/SIGNS AND SYMPTOMS/ ... Vapors are corrosive to human skin & mucous membranes./SIGNS AND SYMPTOMS/ Corrosive: human. Liquid sulfuryl chloride as well as vapors of sulfuryl chloride are corrosive to skin and mucous membranes.For more Human Toxicity Excerpts (Complete) data for SULFURYL CHLORIDE (8 total), please visit the HSDB record page.
Non-Human Toxicity Excerpts/LABORATORY ANIMALS: Acute Exposure/ The LC50 of sulfuryl chloride (approx 100% pure) in male Sprague-Dawley rats (10 animals/group) exposed to a single 4-hr inhalation (nose only) was found to be 159 ppm (equivalent to 878 mg/cu m). All exposed animals displayed red nasal and ocular discharge. The survivors showed body weight loss for 1 to 2 days after the exposure. No macroscopic findings were reported./LABORATORY ANIMALS: Acute Exposure/ In male and female rats (10 animals/group), an LC50 value of 330 mg/cu m was calculated after a one-hour exposure to sulfuryl chloride (approx 100% pure). All test concentrations produced salivation and dyspnea, the severity of which was concentration-dependent. Locally, lacrimation and chemosis with erythema of the skin around the ears and nose were observed. Necropsy of the surviving and the deceased animals revealed hemorrhagic lungs. In the deceased animals, severe erythema in the gastrointestinal tract was seen in addition./LABORATORY ANIMALS: Subchronic or Prechronic Exposure/ Sprague-Dawley rats were given 3, 10, or 30 ppm (about 16.4, 55, or 165 mg/cu m respectively) /sulfuryl chloride/ by inhalation for 6 hours/day, 5 days/week, for 2 weeks. High concentration was reduced to 20 ppm (about 110 mg/cu m) after 2 exposures due to excessive weight loss and terminated after 8 exposures due to the death of 2 ratsimmediately after exposure increase of RBC, hemoglobin level, lung to body weight ratio and fibrino-necrotic bronchopneumonia in the 10 and 20 (30) ppm groupsmarked recovery from the lesions, normal weight gain 2 weeks after termination of exposure. In the 3 ppm group exacerbation of naturally occurring murine pneumonitis./LABORATORY ANIMALS: Subchronic or Prechronic Exposure/ /In a 14 day inhalation study/ with 10 male Sprague-Dawley rats per test group, rats were exposed 6 hours per day and 5 days per week to sulfuryl chloride (as vapor), /purity 100%, specially distilled batch/, at concentrations of 17, 55 or 166 mg/cu m. The highest concentration was reduced to 110 mg/cu m after 2 exposures due to excessive weight loss and was terminated after 8 exposures due to the death of 2 rats. Animals exhibited labored breathing, red discharge from nose, swollen nose and reduced body temperature. Body weight was reduced also at low and mid dose levels, but developed normally during recovery Immediately after exposure a concentration-dependent increase of red blood cells and hemoglobin levels, as well as of relative lung weights was observed in rats treated with 55 mg/cu m or more. Clinical chemistry showed increased blood urea nitrogen in all treated groups and increased levels of serum cholesterol in mid and high dose groups. Histopathologically these rats showed a fibrino-necrotic bronchopneumonia. Additionally, the rats of the high-dose group revealed a fibrino-purulent rhinitis and lymphoid atrophy in thymus. Marked recovery from these symptoms and return to normal weight gain was observed after the 2-week post exposure observation period. There was a decrease of monocytes in all treated groups at the end of the recovery period. In the low-dose group the only effect was an apparent exacerbation of naturally occurring murine pneumonitis.For more Non-Human Toxicity Excerpts (Complete) data for SULFURYL CHLORIDE (12 total), please visit the HSDB record page.
Populations at Special RiskPersons with pulmonary diseases
Probable Routes of Human ExposureNIOSH (NOES Survey 1981-1983) has statistically estimated that 2,256 workers (657 of these are female) are potentially exposed to sulfuryl chloride in the US(1).
Antidote and Emergency TreatmentBasic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist respirations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... Monitor for shock and treat if necessary ... For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... Do not use emetics. Activated charcoal is not effective. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... Do not attempt to neutralize because of exothermic reaction. Cover skin burns with dry, sterile dressings after decontamination ... /Inorganic acids and related compounds/Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Early intubation, at the first sign of upper airway obstruction, may be necessary. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... Consider administering a beta agonist such as albuterol for severe bronchospasm ... Monitor cardiac rhythm and treat arrhythmias as necessary ... Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's(LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... Use proparacaine hydrochloride to assist eye irrigation ... /Inorganic acids and related compounds/
Toxicity DataLC50 (rat) = 159 ppm/4hr
Non-Human Toxicity ValuesLC50 Rat, female, inhalation (1 hr) = 242 ppm (1330 mg/cu m)LC50 Rat, male, inhalation (1 hr) = 131 ppm (720 mg/cu m)LD50 Rat, male, Sprague-Dawley, inhalation (4 hr) = 878 mg/cu m /(159 ppm)/ (sulfuryl chloride vapor, purity 100%)
DHS Chemicals of Interest (COI)Sulfuryl chlorideA Commercial GradeA Placarded AmountChemical or material that can be mixed with readily available materials.
F3-10-21
Wassergefährdungsklasse (WGK)2
TSCA-Inventar-StatusTSCA listed
UN-TransportnummerUN 1834
Zollcode28121099
RTECS-Nr.WT4870000
R-Sätze (R)34-40-14-37-67
GefahrensymboleC
Sicherheitshinweise (S)26-45-36/37-36/37/39
Gefahrenklasse6.1Acute Tox. 2 InhalationEye Dam. 1Skin Corr. 1CSTOT SE 3
VerpackungsgruppeI
Lagerklasse6.1B - Non-combustible acute toxic Cat. 1 and 2very toxic hazardous materials
Gefahrstoffdaten7791-25-5(Hazardous Substances Data)