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Product Name: Sulfur Monochloride
Chemical Formula: S2Cl2
CAS Number: 10025-67-9
Manufacturers and Suppliers: Industrial chemical distributors, research supply companies
Recommended Uses: Vulcanization of rubber, chemical synthesis, pesticide manufacturing, intermediate for organic compounds
Restrictions on Use: Not for household or consumer applications
Emergency Number: Local emergency services or poison control
Classification: Acute toxicity (oral, inhalation, dermal), skin corrosion, serious eye damage, aquatic toxicity
Signal Word: Danger
Hazard Statements: Toxic if swallowed, causes severe skin burns and eye damage, may cause respiratory irritation, harmful to aquatic life with long-lasting effects
Pictograms: Skull and crossbones, Corrosion, Exclamation mark, Environment
Precautionary Statements: Do not breathe fumes, wear suitable protective equipment, avoid release to the environment, wash skin thoroughly after handling
Chemical Name: Sulfur Monochloride
Synonyms: Disulfur Dichloride, Sulfur Chloride, S2Cl2
Concentration: 98–100%
Impurities: May contain traces of sulfur dichloride (SCl2) and free sulfur depending on the source
Inhalation: Move affected person to fresh air immediately, seek medical attention, provide artificial respiration if breathing has stopped, oxygen might be necessary
Skin Contact: Remove contaminated clothing, wash skin steadily with plenty of water for at least 15 minutes, medical treatment is urgent to prevent deep tissue damage
Eye Contact: Rinse cautiously with water for at least 15 minutes keeping eyelids open, seek emergency medical help
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, seek immediate medical attention, do not induce vomiting due to the corrosive nature of the chemical
Acute Symptoms: Severe pain, respiratory distress, eye and skin burns, gastrointestinal symptoms
Suitable Extinguishing Media: Dry sand, dry chemical powder, carbon dioxide, do not use water directly on the material due to violent reaction
Special Hazards: Releases toxic gases including hydrogen chloride, sulfur dioxide upon heating
Firefighting Instructions: Wear full chemical protective suit and self-contained breathing apparatus, remove containers from fire area if safe, prevent run-off from reaching drains
Explosion Risk: Vapors may form explosive mixtures with air under some conditions, reacts with many substances causing heat and gas release
Personal Precautions: Evacuate unnecessary personnel, secure adequate ventilation, wear full protective equipment including chemical splash goggles, acid-resistant gloves, and respirator
Environmental Precautions: Prevent spillage or runoff from entering drains and soil, alert environmental authorities
Containment: Use inert absorbent material such as dry sand, collect residue in sealable containers suitable for hazardous waste
Clean-up: Neutralize small residues with soda ash or lime, ventilate area extensively before re-entry, decontaminate tools and surfaces safely
Safe Handling Guidelines: Work in chemical fume hood with local exhaust, avoid contact with skin, eyes, clothes, do not breathe vapors, handle only with specialized equipment
Storage Recommendations: Store in tightly closed bottles made of suitable materials like glass or steel, keep in cool, dry, well-ventilated place separated from water, moisture, and incompatible materials such as alcohols, amines, or combustibles
Incompatible Substances: Water, alcohols, bases, many organic substances, strong oxidizers, reducing agents
Storage Temperature: Store at ambient temperature, avoid temperature extremes which may cause rupture or leakage
Exposure Limits: OSHA PEL not established, recommended occupational exposure limits by ACGIH are 1 ppm as time-weighted average for similar sulfur chlorides
Engineering Controls: Use local exhaust, chemical fume hood, emergency eye wash stations and safety showers
Personal Protective Equipment: Chemical splash goggles, acid-resistant gloves (such as butyl, neoprene), impervious protective clothing, full face shield
Respiratory Protection: Use NIOSH-approved respirator with acid gas cartridge for spills or high exposure, self-contained breathing apparatus in emergencies
Appearance: Clear yellow to red liquid, oily texture
Odor: Pungent, irritating
pH: Not applicable due to hydrolysis in water
Melting Point: -80°C
Boiling Point: 138°C
Flash Point: 30°C (86°F, closed cup), flammable
Vapor Pressure: 15 mmHg at 25°C
Density: 1.68 g/cm³
Solubility: Reacts with water, soluble in carbon disulfide and benzene
Decomposition Temp: Decomposes at elevated temperatures releasing toxic fumes
Chemical Stability: Stable in original sealed container under recommended storage conditions, decomposes on exposure to moisture, sunlight, or heat
Hazardous Reactions: Violent hydrolysis with water, reacts exothermically with alcohols, amines, organic materials
Incompatible Materials: Metals, oxidizers, combustibles, alkalis
Hazardous Decomposition Products: Sulfur dioxide, hydrogen chloride, elemental sulfur
Routes of Exposure: Inhalation, skin absorption, ingestion, eye contact
Acute Effects: Severe irritation and burns to skin, eyes, mucous membranes; respiratory difficulty, coughing, chest pain if inhaled; burning sensation, abdominal pain if ingested
Chronic Effects: Prolonged or repeated exposure can cause skin sensitization, chronic lung problems
Toxicity Data: Oral LD50 (rat): 205 mg/kg; Inhalation LC50 (rat, 4 h): 270 ppm
Carcinogenicity: Not classified by IARC, ACGIH, NTP, OSHA
Sensitization: Can cause allergic reactions in sensitized individuals
Eco-toxicity: Very toxic to aquatic life, both acute and chronic
Persistence: Reacts rapidly with moisture breaking down into persistent acids
Bioaccumulation: Data limited; predicted low due to rapid hydrolysis
Mobility in Soil: Expected to bind to soil moisture and hydrolyze quickly, forming acids
Additional Hazards: Release into water bodies will cause acidification, damaging flora and fauna
Disposal Methods: Collect in tight, corrosion-resistant containers; send to licensed hazardous chemical disposal facility
Treatment: Recycled or neutralized under expert supervision, never discharge to drains or surface water
Contaminated Packaging: Triple rinse with neutralizing solution, puncture after decontamination, dispose as hazardous waste
UN Number: UN 1834
Proper Shipping Name: Sulfur Monochloride
Hazard Class: 6.1 (Toxic Substances)
Packing Group: I (highest danger level)
Marine Pollutant: Yes
Transport Labels: Toxic, corrosive substances, environmental hazard
Special Transport Precautions: Secure upright, avoid temperature shifts, transport according to local and international regulation
OSHA: Covered under the Hazard Communication Standard, chemical hazard classification available
EPA: Listed as hazardous substance, subject to CERCLA and SARA reporting requirements
TSCA: Included in the inventory
REACH: Registration required in European Union; manufacturer responsibility
Other Regulations: Subject to international transport and environmental safety laws, local workplace rules for storage and handling
