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MSDS Page 3 of 5 <br /> CFR 1910.134 or European Standard EN 149. Always use <br /> a NIOSH or European Standard EN 149 approved <br /> respirator when necessary. <br /> **** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES **** <br /> Physical State: Liquid <br /> Color: Colorless. <br /> Odor: Sweet, aromatic. <br /> pH: Not available. <br /> Vapor Pressure: 100 mm Hg <br /> Viscosity: 0.647mPa at 20C <br /> Boiling Point: 176 deg F <br /> Freezing/Melting Point: 42 deg F <br /> Autoignition Temperature: 928 deg F ( 497.78 deg C) <br /> Flash Point: 12 deg F ( -11.11 deg C) <br /> Explosion Limits, lower: 1.3 <br /> Explosion Limits, upper: 7.1 <br /> Decomposition Temperature: Not available. <br /> Solubility in water: 0.18g/100g water at 25C. <br /> Specific Gravity/Density: 0.88 <br /> Molecular Formula: C6H6 <br /> Molecular Weight: 78.042 <br /> **** SECTION 10 - STABILITY AND REACTIVITY **** <br /> Chemical Stability: <br /> Stable at room temperature in closed containers under normal storage <br /> and handling conditions. <br /> Conditions to Avoid: <br /> Incompatible materials, ignition sources, excess heat. <br /> Incompatibilities with Other Materials: <br /> Bromine pentafluoride, bromine trifluoride, chlorine, chlorine <br /> trifluoride, chromic anhydride, diborane, iodine heptafluoride, <br /> nitric acid, nitryl perchlorate, oxidizers, oxygen, ozone, <br /> perchlorates, permanganates + sulfuric acid, potassium peroxide, <br /> silver perchlorate, sodium peroxide. <br /> Hazardous Decomposition Products: <br /> Irritating and toxic fumes and gases. <br /> Hazardous Polymerization: Has not been reported. <br /> **** SECTION 11 - TOXICOLOGICAL INFORMATION **** <br /> RTECS#: <br /> CAS# 71-43-2: CY1400000 <br /> LD50/LC50: <br /> CAS# 71-43-2: Dermal, guinea pig: LD50 = >9400 uL/kg; Draize test, <br /> rabbit, eye: 88 mg Moderate; Draize test, rabbit, eye: 2 mg/24H <br /> Severe; Draize test, rabbit, skin: 20 mg/24H Moderate; Inhalation, <br /> mouse: LC50 = 9980 ppm; Inhalation, mouse: LC50 = 24 mL/kg/2H; <br /> Inhalation, rat: LC50 = 10000 ppm/7H; Inhalation, rat: LC50 = 34 <br /> mL/kg/2H; Inhalation, rat: LC50 = 6.5 mL/kg/4H; Oral, mouse: LD50 = <br /> 4700 mg/kg; Oral, rat: LD50 = 930 mg/kg; Oral, rat: LD50 = 1 mL/kg; <br /> Oral, rat: LD50 = 1800 mg/kg; Skin, rabbit: LD50 = >9400 uL/kg. <br /> Carcinogenicity: <br /> Benzene - <br /> ACGIH: Al - Confirmed Human Carcinogen <br /> California: carcinogen; initial date 2/27/87 <br /> NIOSH: potential occupational carcinogen <br /> NTP: Known carcinogen <br /> OSHA: Select carcinogen <br /> IARC: Group 1 carcinogen <br /> Other: <br /> See actual entry in RTECS for complete information. <br /> **** SECTION 12 - ECOLOGICAL INFORMATION **** <br /> Ecotoxicity: <br /> Minnow (distilled water) lethal, 5 ppm/6H. Sunfish (tap water) TLM=20 <br /> ppm/24H. Striped bass TLm96=100-10 ppm. <br /> **** SECTION 13 - DISPOSAL CONSIDERATIONS **** <br /> http://newsearchch.chemexper.com/cheminfo/servlet/org.dbcreator.MainServlet?action=Po... 8/9/2006 <br />