Product Name: 2-Mercaptothiazole
Chemical Formula: C3H3NS2
Synonyms: 2-MBT, Benzothiazole-2-thiol
CAS Number: 149-30-4
Recommended Use: Vulcanization accelerator, corrosion inhibitor, research chemical
Supplier: As specified by manufacturer or distributor
Emergency Contact: Refer to product label or SDS provider
GHS Classification: Acute Toxicity (Oral, Dermal, Inhalation), Skin Sensitizer, Aquatic Chronic Hazard
Signal Word: Warning
Hazard Statements: Harmful if swallowed or in contact with skin, causes skin irritation, may cause allergic skin reaction, harmful to aquatic life with long-lasting effects
Pictograms: Exclamation mark, environment
Precautionary Statements: Avoid breathing dust or fumes, wear gloves and protective clothing, wash thoroughly after handling, keep away from waterways
Chemical: 2-Mercaptothiazole
CAS Registry Number: 149-30-4
Percent Composition: Greater than 97% as active ingredient
Impurities: Minor thiazole derivatives (less than 3%), inert fillers if present in formulated products
Inhalation: Remove to fresh air, seek medical attention if symptoms persist, provide oxygen if available
Skin Contact: Immediately wash with soap and plenty of water, remove contaminated clothing, get medical help for irritation or allergic reaction
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, keep rinsing, see a physician promptly
Ingestion: Rinse mouth, do not induce vomiting unless advised by medical personnel, seek immediate medical help for discomfort or persistent symptoms
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, water spray
Specific Hazards: Toxic gases such as sulfur oxides, nitrogen oxides, and carbon oxides can form upon combustion
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective gear
Explosion Risk: Dust buildup in confined spaces can create explosive atmosphere, avoid using strong water jets
Personal Precautions: Use personal protective equipment, ventilate area, avoid dust formation
Spill Containment: Avoid release to environment, contain spillage, use inert absorbent (sand/earth)
Cleanup Procedures: Collect with shovel or vacuum, store in suitable waste container, dispose following local regulations
Environmental Precautions: Prevent entry into drains, surface water, or soil
Precautions for Safe Handling: Avoid creating dust, use local ventilation, wear protective clothing, wash hands after use
Storage Conditions: Store in tightly sealed original container, keep cool and dry, protect from sunlight, segregate from food, oxidizers, and acids
Special Requirements: Maintain suitable labeling, keep away from sources of ignition, avoid unnecessary handling
Occupational Exposure Limits: No specific OSHA PEL or ACGIH TLV established, use general dust limits (e.g. 10 mg/m3 total dust)
Engineering Controls: Use process enclosure, local exhaust ventilation
Personal Protective Equipment: Chemical-resistant gloves, safety glasses with side shields, protective clothing, respiratory protection for dust
Hygienic Measures: Wash hands and face before breaks, after handling, do not eat or drink in areas where material is used
Appearance: Pale yellow powder or crystals
Odor: Slight odor, faintly sulfurous
Molecular Weight: 131.2 g/mol
Melting Point: 155–168°C
Boiling Point: Decomposes
Solubility: Slightly soluble in water, soluble in ethanol and acetone
Vapor Pressure: Negligible at room temperature
Density: Approximately 1.42 g/cm³
pH: 6–7 (0.1% in water)
Flammability: Not readily flammable under standard conditions
Chemical Stability: Stable under standard temperature and pressure
Reactive Conditions: Incompatible with strong oxidizers and acids, avoid strong heat
Decomposition Products: Toxic fumes of sulfur oxides, nitrogen oxides, carbon monoxide, carbon dioxide
Polymerization: Does not self-polymerize under normal use
Acute Toxicity: Oral LD50 (rat) 398 mg/kg, Dermal LD50 (rabbit) 1,200 mg/kg
Inhalation: Dust may irritate respiratory tract
Skin Contact: May cause irritation, sensitization reaction in susceptible individuals
Eye Contact: Irritation possible on direct exposure
Chronic Exposure: Possible skin sensitization with repeated contact, no evidence of carcinogenicity based on available data
Mutagenicity & Carcinogenicity: Limited information, not listed by IARC, NTP, or OSHA
Toxicity to Aquatic Life: Harmful to aquatic organisms, significant effects on long-term exposure
Persistence and Degradability: Partially persistent in soil and water, slow degradation under typical environmental conditions
Bioaccumulation: Limited data available, not expected to bioaccumulate significantly
Mobility: Moderately mobile in soil due to partial solubility
Other Adverse Effects: Apply best environmental practices to avoid contamination
Waste Treatment Methods: Dispose in accordance with local, regional, national, and international regulations
Incineration: Acceptable method in properly permitted facility
Landfill: Use permitted landfill only under controlled conditions
Container Handling: Empty containers may contain residues, treat as hazardous waste, avoid reuse
UN Number: 3077
UN Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (2-Mercaptothiazole)
Transport Hazard Class: 9, Miscellaneous dangerous goods
Packing Group: III
DOT / ADR / IMDG / IATA: Regulated for ground, air, and sea transport, ensure proper packaging and labeling
Environmental Hazards: Classified as marine pollutant for international transport
TSCA: Listed
REACH: Registered substance in the European Union, subject to restrictions
SARA Title III: Not subject to Section 313 reporting as of latest update
California Prop 65: Not listed
Other National Inventories: Listed in Australia AICS, Canada DSL/NDSL, Japan ENCS, China IECSC
Label Elements: In accordance with local and international regulation requirements, ensure correct hazard warnings and pictograms
