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Date of Issue : Sep 1998 1. IDENTIFICATION
General Product Name : ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S (MBT) Other Names : 2-MERCAPTOBENZOTHIAZOLE MBT UN No. : 3077 Dangerous Goods Class : 9 Subsidiary Risk : None Allocated Hazchem Code : 2X Pack Group : III EPG : 47 Poisons Schedule : N/A Uses : Vulcanisation accelerator for rubber (requires use of stearic acid for full activation), tyre treads and carcasses, mechanical specialties, etc., fungicide, corrosion inhibitor in cutting oils and petroleum products, extreme-pressure additive in greases.
1.1 Physical Description / Properties
Appearance : Cream/off-white powder with a disgreeable odour. Formula : CHCHCHCHCCSC(SN)N Boiling Point : 260 deg C Melting Point : 180 deg C Vapour Pressure : N/A Specific Gravity : >1.42 (water = 1) Flash Point : Test Unknown 252 pH : N/A () Solubility in water : 0.118 g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Decomposes above 260 deg C. 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
May cause slight irritation of gastrointestinal tract. Eye
May cause moderate irritation. Skin
May cause an allergic skin reaction in sensitive individuals. Inhaled
May cause slight irritation of mucous membranes. 2.2 Health Effects - Chronic
Long or frequent overexposures may lead to skin sensitisation. Some cases of contact dermatitis have been reported. No other adverse effects recorded. Not listed as carcinogenic or mutagenic in any jurisdiction.
2.3 First Aid
Swallowed
Treat for shock if required. Give water to drink. Unless recovery is prompt seek medical advice.
Eye
Hold eyelids open and flush with water for 15 minutes. If symptoms persist seek medical advice.
Skin
Remove contaminated clothing. Wash affected area for 5 minutes with soap and water. Do not rub hard. Rinse well and pat dry. If symptoms persist seek medical advice.
Inhaled
Remove patient to fresh air. Loosen tight clothing and allow to rest. Treat for shock if required. Rinse mouth and nose with water. Provide artificial respiration if breathing stops. Unless recovery is prompt seek medical advice.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
No specific antidotes available. Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
Oral LD50 = 3800 mg/kg (Rat) Dermal LD50 = >7940 mg/kg (Rabbit) Inhalation LC50 = not available On the basis of available information this material is not expected to have any detrimental effects if the recommended safety precautions are followed. Sensitisation : Maximisation Test (guinea pig) : Sensitising (skin) Patch testing (human experience) : not sensitising, non-irritant Genotoxicity : not mutagenic (in vitro, in vivo) Other toxicological inforamtion : not teratogenic. Oral carcinogenicity test (rat, mouse) : tumours not relevant in man.
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
Worksafe has not established an exposure standard for this substance. It is recommended that it be treated as producing 'nuisance dusts' and that an exposure standard of 10 mg/m3 measured as respirable dust and 5 mg/m3 measured as inspirable dust be adopted.
3.2 Engineering Controls
Provide suitable ventilation to ensure that workplace ambient air is kept below the exposure standard recommended. Avoid the creation of high dust concentrations by the use of dust extractors. Dust forms an explosive mixture with air at 203 g/m3.
3.3 Personal Protection
Avoid breathing dusts. If work is to be carried out in a poorly ventilated or confined area use suitable respirators. See AS1716 for details. Goggles or chemical safety glasses should be worn. Wearers of contact lenses are advised to be particularly careful. Gloves are not normally required but if handling product for long periods they may prove beneficial. Wear cotton overalls fastened at the neck and wrists. Wash hands and face thoroughly after handling and before work breaks, eating, drinking and using toilet facilities.
3.4 Flammability
Substance decomposes above 290 deg C emitting toxic fumes of SOx. May ignite at temperatures above 100 deg C. May form explosive dust clouds. SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool area away from oxidisers, acids or foodstuffs. Keep containers tightly closed when not in use. Avoid creating dust cloud when cleaning store area. Containers retain vapours and product residues. Follow labelled instructions as if container were full. Transport in accordance with the ADG Code. Do not transport with Class 5 DG or strong acids.
4.2 Packaging / Labelling UN No. 3077 Class 9 Sub Risk None Allocated Hazchem Code 2X Pack Group III EPG No. 47 Shipping Name ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S (MBT) Hazard IRRITANT
Risk Phrases R43 May cause sensitisation by skin contact. R50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Phrases S22 Do not breathe dust. S24 Avoid contact with skin. S37 Wear suitable gloves. S60 This material and its container must be disposed of as hazardous waste. S61 Avoid release to the environment; refer to special instructions or Material Safety Data Sheet.
4.3 Spills and Disposal
Spills
Prevent material entering drains or waterways. Avoid creating dust clouds. Clean-up personnel should wear full protective clothing including breathing protection for dusty environments.
Sweep, shovel up and place in clean, dry containers, label and place in a safe place to await disposal. Flush spill area with water. Absorb water with sand or vermiculite, shovel into container, label and place in a safe area to await disposal as contaminated water.
Disposal
Dispose of in accordance with all Local, State and Federal regulations at an approved waste disposal facility.
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Emits toxic fumes of SOx, NOx and COx when decomposing or in contact with strong oxidisers or acids. May pose a dust explosion hazard at high concentrations. May ignite at temperatures greater than 100 deg C.
Extinguishing Media
Fire-fighters should wear full protective clothing including selfc-contained breathing apparatus. Use water spray, water mist, foam, dry chemical powder or carbon dioxide type extinguishers. Use equipment/media appropriate to surrounding fire conditions. Do not allow run-off from fire-fighting to enter drains or water courses. 5 OTHER INFORMATION
Other Information
Not readily biodegradable. Toxic to fish, daphnia and algae. Ecotoxicity Fish : 96hr LC50 : 1.5 mg/l (Lepomis macrochirus) 96hr LC50 : 0.75 mg/l (Oncorhynchus mykiss) 96hr LC50 : 11 mg/l (Pimepheles promelas) Daphnia : 48hr EC50 : 4.1 mg/l (Daphnia magna) Algae : 96hr EC50 : 0.25 mg/l (cell count)
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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