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Potassium Amyl Xanthate, Solid <br />WHMIS Number: 00060600 <br />Page 5 of 8 <br />Brenntag Canada Inc. <br />Date of Revision: 2009 June 17 <br />Other Personal Protective <br />Avoid accumulation and dispersion of dust to reduce explosion potential. Wear an impermeable apron <br />Equipment: <br />and boots. Locate safety shower and eyewash station close to chemical handling area. Take all <br />precautions to avoid personal contact. Clothing and footwear that is fire retardant and dissipates static <br />electrical charges should be worn when handling flammable materials. Natural fibers (cotton, wool, <br />leather and linen) should be selected in favour of synthetic materials (rayon, nylon and polyester). <br />Skin Notation: Contact with skin, eyes and mucous membranes can contribute to the overall exposure <br />and may invalidate the TLV. Consider measures to prevent absorption by these routes. <br />EXPOSURE GUIDELINES <br />SUBSTANCE <br />ACGIH TLV OSHA PEL NIOSH REL <br />(STEL) (TWA) (STEL) (TWA) (STEL) <br />Potassium Hydroxide 2 mg /m' (Ceiling) -- -- -- 2 mg/m3 (Ceiling) <br />Isoamyl alcohol <br />125 ppm 100 ppm -- 100 ppm 125 ppm <br />Decomposition Product: <br />— 20 ppm (Skin) 30 ppm (Skin) 1 ppm (Skin) 3 ppm (Skin) <br />Carbon disulfide <br />9. PHYSICAL AND CHEMICAL PROPERTIES (Not intended as Specifications) <br />Physical State: <br />Solid. <br />Appearance: <br />Yellow to yellow -green pellets. <br />Odour: <br />Strong, disagreeable sulphur odour. <br />Odour Threshold (ppm): <br />0.02 - 0.21 (Carbon Disulphide) <br />Boiling Range ( °C): <br />Not available. <br />Melting /Freezing Point ( °C): <br />255 - 280 (decomposes). (3) <br />Vapour Pressure (mm Hg at 20° <br />C): Not applicable. <br />Vapour Density (Air = 1.0): <br />Not applicable. <br />Relative Density (g /cc): <br />0.7. (4) <br />Bulk Density: <br />Not applicable. <br />Viscosity: <br />Not applicable. <br />Evaporation Rate (Butyl Acetate <br />= 1.0): Not applicable. <br />Solubility: <br />Soluble in water. Hygroscopic (readily absorbs water). <br />% Volatile by Volume: <br />< 20. (3) <br />pH: <br />10.5(10% solution). (3) <br />Coefficient of Water /Oil Distribution: Not available. <br />Volatile Organic Compounds (VOC): Not applicable. <br />Flashpoint ( °C): <br />-30. (Carbon Disulphide) <br />10. STABILITY AND REACTIVITY <br />CHEMICAL STABILITY <br />Under Normal Conditions: <br />Unstable. Solid Xanthates are stable when kept cool and dry. Exposure to heat causes decomposition. <br />Acids and oxidizing agents accelerate aging. In solution, Xanthates will decompose slowly even at room <br />temperature. (3) <br />Under Fire Conditions: <br />Flammable. This product may be capable of forming flammable dust clouds in air. <br />Hazardous Polymerization: <br />Will not occur. <br />Conditions to Avoid: <br />High temperatures, sparks, open flames and all other sources of ignition. Avoid accumulation and <br />dispersion of dust to reduce explosion potential. Exposure to heat and moisture may cause the <br />decomposition of xanthates to release flammable, explosive and poisonous Carbon Bisulphide vapours. <br />(3) <br />Materials to Avoid: <br />Strong oxidizers. Lewis or mineral acids. Metal Salts. Copper and its alloys.. Contact with acids will <br />liberate Carbon Bisulphide. Avoid moisture contamination. Contact with water or moisture will liberate <br />Carbon Bisulphide. Mixtures or reactions of alcohols with the following materials may cause explosions: <br />barium perchlorate, chlorine, hypochlorous acid, ethylene oxide, hexamethylene diisocyanate and other <br />isocyanates, nitrogen tetroxide, permonosulfuric acid and tri- isobutyl aluminum. (4) Attacks some types <br />of rubber, plastics and coatings. <br />