2-MERCAPTOBENZOTHIAZOLE ICSC: 1183 Benzothiazolethiol Benzothiazole-2-thione MBT C7H5NS2 / C6H4SNCSH Molecular mass: 167.3 ICSC #    1183 CAS #     149-30-4 RTECS # DL6475000 EC #         613-108-00-3 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, water spray, foam, carbon dioxide. Explosion Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Exposure AVOID ALL CONTACT!  •Inhalation Local exhaust or breathing protection. Fresh air, rest.  •Skin Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •Eyes Redness. Pain. Safety goggles, or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Do not eat, drink, or smoke during work. Rinse mouth. Spillage Disposal Storage Packaging & Labelling Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles. Separated from acids. Xi symbol N symbol R: 43-50/53 S: 2-24-37-60-61 2-MERCAPTOBENZOTHIAZOLE ICSC: 1183 Important Data Physical State; Appearance: YELLOW CRYSTALS , WITH PUNGENT ODOUR. Physical Dangers: Chemical Dangers: The substance decomposes on burning producing toxic and irritating fumes ( sulfur oxides , nitrogen oxides ). Reacts with acids or acids fumes to produce toxic fumes ( nitrogen oxides , sulfur oxides ). Occupational Exposure Limits: TLV not established. MAK: 4 I mg/m3 Sh; Carcinogen category: 3B; Pregnancy risk group: C; (DFG 2004). Routes of Exposure: Inhalation Risk: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. Effects of Short-Term Exposure: The substance is irritating to the eyes . Effects of Long-Term or Repeated Exposure: Repeated or prolonged contact may cause skin sensitization. Physical Properties Melting point: 180-182°C Density: 1.42 g/cm3 Solubility in water: 0.1 g/100 ml Flash point: 200°C c.c. Auto-ignition temperature: 628°C Explosive limits, vol% in air: 15-? Octanol/water partition coefficient as log Pow: 2.41 Environmental Data This substance may be hazardous to the environment; special attention should be given to fish. N O T E S Do NOT take working clothes home. ADDITIONAL INFORMATION ICSC: 1183 2-MERCAPTOBENZOTHIAZOLE (C) IPCS, CEC, 1994 IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.