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Product Name: Bis(N,N-Dimethylthiocarbamoyl) Disulfide
SYNONYMS: Thiram, Tetramethylthiuram disulfide
CAS Number: 137-26-8
Recommended Uses: Fungicide in agriculture, additive in rubber processing
Supplier: Supplier details should be checked on label or invoice
Emergency Phone: Emergency contact phone numbers available via poison control or supplier
Manufacturing Address: Check packaging for the most current and specific information
GHS Classification: Acute toxicity oral, eye irritation, skin sensitization, specific target organ toxicity (repeated exposure), hazardous to the aquatic environment (acute and chronic)
Signal Word: Warning
Hazard Statements: Harmful if swallowed or inhaled; may cause allergic skin reaction; causes eye irritation; suspected of causing genetic defects; toxic to aquatic life with long lasting effects
Pictograms: Exclamation mark, health hazard, environment
Precautionary Statements: Avoid breathing dust, use only outdoors or in well-ventilated area; wear protective gloves and clothing; wash hands thoroughly after handling; avoid release to the environment
Chemical Name: Bis(N,N-Dimethylthiocarbamoyl) Disulfide
Common Name: Thiram
CAS Number: 137-26-8
Concentration: 97–100% (may differ by grade, confirm on product label)
Inhalation: Remove individual to fresh air, keep at rest in comfortable position, seek medical attention if respiratory symptoms occur
Skin Contact: Remove contaminated clothing, wash skin with plenty of water and soap, get medical attention if irritation persists
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical attention if redness or irritation occurs
Ingestion: Rinse mouth, do not induce vomiting, call poison center or doctor right away
Extinguishing Media: Water spray, foam, dry chemical, or carbon dioxide can knock down fire; avoid use of high-pressure streams
Specific Hazards: Toxic fumes such as sulfur oxides, nitrogen oxides, and carbon disulfide may form during combustion
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective clothing
Additional Advice: Move containers from fire area if it can be done without risk; prevent fire water runoff from entering drains
Personal Precautions: Use personal protective equipment including gloves, eyewear, and suitable respiratory protection; try to avoid touching skin or eyes
Environmental Precautions: Prevent further leakage or spillage if safe to do so; do not let chemical enter drains, surface water, or soil
Methods for Clean-up: Sweep up and shovel spilled material carefully into containers for disposal; ventilate the area well after clean-up
Handling: Use in well-ventilated area; avoid formation of dust or aerosols; do not breathe dust; prevent contact with skin, eyes, and clothing
Storage: Keep container tightly closed in cool, dry, and well-ventilated place; store away from food, feed, and incompatible materials like strong acids and oxidizers; secure packaging properly to prevent spillage
Exposure Limits: OSHA TWA 5 mg/m3; ACGIH TLV 1 mg/m3 (check latest standards for updates)
Engineering Controls: Use of local exhaust ventilation or fume hood is strongly recommended; ensure all processes are designed to minimize exposure risk
Personal Protective Equipment: Wear chemical-resistant gloves, eye protection, protective clothing, and certified respirators if risk of inhalation exists; always wash hands after using chemical, and remove contaminated clothing after handling
Appearance: White to pale yellow crystalline powder
Odor: Faint, sulfurous
Melting Point: 155–156°C
Boiling Point: Decomposes before boiling
Solubility: Slightly soluble in water, more soluble in acetone, ethanol, and other organic solvents
Density: Approximately 1.29 g/cm3
Vapor Pressure: Very low at room temperature
pH (in solution): 6–7
Chemical Stability: Stable under recommended storage conditions away from moisture and heat
Conditions to Avoid: Heat, sources of ignition, direct sunlight, moisture
Incompatible Materials: Strong acids, oxidizing agents, strong bases; may react with strong reducing agents
Hazardous Decomposition: Toxic gases including carbon monoxide, carbon disulfide, carbon dioxide, nitrogen oxides, and sulfur oxides arise from thermal decomposition or fire
Potential Health Effects: Harmful if swallowed or inhaled; moderate skin irritant; skin sensitizer; may cause serious eye irritation; repeated exposure may affect liver, kidneys, blood, and nervous system
Acute Toxicity (oral): LD50 (rat) ~ 560 mg/kg
Acute Toxicity (dermal): LD50 (rat) > 2,000 mg/kg
Sensitization: May cause allergic reaction through skin contact
Mutagenicity: Some evidence in laboratory settings; risk to humans uncertain without direct evidence from epidemiological studies
Carcinogenicity: Not classified as carcinogenic by IARC, but long-term effects not fully established
Ecotoxicity: Highly toxic to aquatic organisms; can result in long-term adverse effects for aquatic environments
Persistence and Degradability: Not readily biodegradable; active in soil and water for weeks to months
Bioaccumulative Potential: Moderate potential for bioaccumulation in fish and other aquatic species
Mobility in Soil: Moderate mobility depending on soil type
Other Adverse Effects: Exposure of non-target species, including bees and birds, can lead to acute toxicity
Disposal Method: Dispose of this material and its container through licensed hazardous waste collection sites in accordance with local, national, or regional environmental regulations
Contaminated Packaging: Containers should be rinsed, triple-washed, and disposed of effectively; never reuse empty packaging for food or personal use
Precautions: Do not discharge into drains or water courses; consult environmental agency about safe incineration or landfill
UN Number: 2811
Proper Shipping Name: Toxic solid, organic, n.o.s. (Bis(N,N-Dimethylthiocarbamoyl) Disulfide)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazard: Yes, marine pollutant
Special precautions: Requires appropriate labeling, keep separated from food and animal feed during transport, do not load with incompatible materials
TSCA: Listed in the United States Toxic Substances Control Act inventory
REACH: Registration required in EU according to REACH Annexes
OSHA: Subject to workplace hazard communication standards
SARA Title III: Classified as hazardous under Section 313; reportable if thresholds exceeded
Pollution Release and Transfer Register: Required reporting for environmental release in countries with PRTR regulations
Other requirements: Follow all relevant workplace safety regulations, and ensure compliance with regional and national environmental protection laws
