International Chemical Safety Cards 2-MERCAPTOBENZOTHIAZOLE ICSC: 1183 2-MERCAPTOBENZOTHIAZOLE Benzothiazolethiol Benzothiazole-2-thione MBT C7H5NS2 Molecular mass: 167.3 CAS # 149-30-4 RTECS # DL6475000 ICSC # 1183 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   EXPOSURE PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! INHALATION Cough. Local exhaust or breathing protection. Fresh air, rest. SKIN Redness. 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. Give plenty of water to drink. Rest. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into sealable containers. Carefully collect remainder, then remove to safe place (extra personal protection: P3 filter respirator for toxic particles). Separated from acids, food and feedstuffs. Do not transport with food and feedstuffs. UN Hazard Class: 6.1 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 1183 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards 2-MERCAPTOBENZOTHIAZOLE ICSC: 1183 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: YELLOW CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating and on burning producing toxic and irritating fumes (sulfur and nitrogen oxides). Reacts with acids with the formation of highly toxic fumes of sulphur compounds. Reacts with acids or acid fumes producing toxic fumes (sulfur compounds). OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on dispersion, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Melting point: 180-182°C Relative density (water = 1): 1.42 Solubility in water: none Flash point: see Notes

ENVIRONMENTAL DATA
NOTES
The substance is combustible but no flash point is available in literature. Vulkacit Mercapto is a trade name. Transport Emergency Card: TEC (R)-61G12b

ADDITIONAL INFORMATION
ICSC: 1183 2-MERCAPTOBENZOTHIAZOLE © IPCS, CEC, 1993

IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.