BHT -Butylhydroxy Toluene

SECTION 2: Hazards identification

OSHA EMERGENCY OVERVIEW

Appearance/Odor

White solid at room temperature. Colorless liquid when melted. Mild Warnings/Precautions WARNING! MAY FORM COMBUSTIBLE DUST CONCENTRATIONS IN AIR (DURING PROCESSING) CAUTION! MAY CAUSE EYE, SKIN AND RESPIRATORY IRRITATION. Contact with hot product will cause thermal burns. Provide adequate ventilation. Avoid contact with skin, eyes and clothing. Wash thoroughly after handling. Material will burn in a fire. Take measures to prevent the build up of electrostatic charge. Environmental Do not flush into surface water or sanitary sewer system. Product is slightly soluble

Precautionary statements

in water. According to the results of tests of biodegradability this product is not readily Biodegradable. BHT is considered to have a moderate to high bioaccumulation Potential (230-2500 (fish,56-daytest) in aquatic species.

Potential health effects

Skin Slightly irritating Eyes Contact with eyes may cause irritation Inhalation May cause irritation of respiratory tract. Ingestion Harmful if swallowed. Additional advice = Product dust may be irritating to eyes, skin and respiratory system 3. First Aid Measures Eye contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. If eye irritation persists, consult a specialist. Skin contact | Wash off with plenty of soap and water. If skin irritation persists call a physician. Wash contaminated clothing before re-use. Inhalation Remove to fresh air.. In the case of inhalation of aerosol/mist consult a physician if necessary. Ingestion If accidentally swallowed obtain immediate medical attention. If conscious, drink plenty of water. Do not induce vomiting. Additional There is no specific antidote. Treatment consists of respiratory and cardiovascular Advice functions. 4. Fire Fighting Measures Flammable Properties (Also see Section 7 for Dust Explosion Risk Data) Flash Point: 118°C (244.0 °F) Flammable limits in Air % by volume: Lower Explosion Limit: No Data Available Upper Explosion Limit: No Data Available Auto ignition: 470 °C (878 °F) Hazardous gases/vapors produced in FIRE are carbon monoxide and carbon dioxide. Extinguishing Media: Water, water spray, foam, dry chemical, CO2 Fire and Explosion: Avoid generating dust; fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source, is a potential dust explosion hazard. Risks of ignition followed by flame propagation or secondary explosions shall be prevented by avoiding accumulation of dust, e.g. on floors and ledges. Material will burn in a fire. Fire Fighting Instructions: Wear self-contained breathing apparatus and protective suit.

Further information

Evacuate personnel to safe areas. Stop source of fuel if possible. Do not allow run-off from fire fighting to enter drains or water courses. | 5. Accidental Release Measures Steps to be taken in case of spill or leak Dust deposits should not be allowed to accumulate on surfaces, as these may form an explosive mixture if they are released into the atmosphere in sufficient concentrations. Avoid dispersal of dust in the air (i.e., clearing dust surfaces with compressed air). Nonsparking tools should be used. Remove all sources of ignition. Use personal protective equipment. Prevent further leakage or spillage. Sweep up and shovel into suitable containers for disposal. Do not flush with water. Non- disposable equipment should be thoroughly decontaminated with soap and water. Do not flush into surface water or sanitary sewer system. Spill precautions Do not contaminate any lakes, streams, ponds, groundwater or soil. Reporting Requirements Composition and extent of any spill should be evaluated against local regulations and reported to the proper agencies, if necessary. 6. Handling and Storage Safe handling advice BHT dust may form an explosive mixture in air. Minimize dust generation and accumulation. Routine housekeeping should be insulated to ensure that dusts do not accumulate on surfaces. Dry powders can build up static electricity charges when subjected to the friction of transfer rand mixing operations. Provide adequate precautions such as electrical bonding and grounding or inert atmospheres. Avoid contact with skin and eyes. Do not breathe vapor/dust. Handle in accordance with good industrial hygiene and safety practices. Keep containers tightly closed in a dry, cool and well ventilated place. 7. Exposure Controls/Personal Protection ENGINEERING MEASURES It is recommended that all dust control equipment such as local exhaust ventilation and material transport systems involved in handling of this product contain explosion relief vents or an explosion suppression system or an oxygen deficient environment. Ensure that dust handling systems (such as exhaust ducts, dust collectors, vessels and processing equipment) are designed in a manner to prevent the escape of dust in to the work area (i.e., there is no leakage from the equipment). Use only appropriately classified electrical equipment and powered industrial trucks. Provide adequate ventilation. Ensure proper grounding of equipment. The type of protective equipment must be selected according to the concentration and amount of the substance at the specific workplace. PERSONAL PROTECTIVE EQUIPMENT EYES When contact with liquid is possible, use a face shield and/or chemical splash goggles. Otherwise use safety glasses with side shields or goggles. SKIN Solvent- resistant gloves. Long sleeved clothing. Non-disposable equipment should be thoroughly decontaminated with soap and water. INHALATION Use an approved organic vapor/ particulate air-purifying respirator to control dust or fumes exposure. EXPOSURE GUIDELINES Components Exposure limit(s) BHT