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irborne4concentrations below the perible exposure limits. <br /> x osure Limits <br /> Chemical Name ACGIH NIOSH OSHA- Final PELs <br /> 10 ppm TWA; 15 ppm STEL; <br /> Naphthalene Skin - potential significant 10 ppm TWA; 50 mg/m3 TWA 10 ppm TWA; 50 mg/m3 TWA <br /> contribution to overall exposure 250 ppm IDLH <br /> by the cutaneous r oute <br /> 13SHA Vacated PELs: Naphthalene: 10 ppm TWA; 50 mg/m3 TWA <br /> Personal Protective Equipment <br /> (yes: Wear chemical splash goggles. <br /> kin: Wear appropriate protective gloves to prevent skin exposure. <br /> lathing: Wear appropriate protective clothing to prevent skin exposure. <br /> Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or <br /> European Standard EN 149 must be followed whenever workplace conditions warrant respirator use. <br /> — ------ ------- ---- — -- <br /> Section 9 - Physical and Chemical Properties <br /> ahysical State: Solid <br /> ppearance: white <br /> dor: mothball-like <br /> tH: Not available. <br /> apor Pressure: 0.05 mm Hg @ 20 deg C <br /> apor Density: 4.4 (air=1) <br /> Evaporation Rate:<1.0 (butyl acetate=l) <br /> Fiscosity: Not available. <br /> oiling Point: 218 deg C <br /> Freezing/Melting Point:79 - 82 deg C <br /> (nomposition Temperature:540 deg C <br /> ulbility: Insoluble. <br /> pecific Gravity/Density:0.9900g/cm3 <br /> Molecular Formula:C10H8 <br /> rolecular Weight:128.17 <br /> mF Section 10 - Stability and Reactivity <br /> hemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions. <br /> Conditions to Avoid: Ignition sources, dust generation, moisture, excess heat, exposure to moist air or water, steam. <br /> Incompatibilities with Other Materials: Strong oxidizing agents. <br /> azardous Decomposition Products: Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. <br /> azardous Polymerization: Will not occur. <br /> Section 11 - Toxicological Information <br /> TECS#: <br /> AS# 91-20-3: Q30525000 <br /> LD50/LCSO: <br /> �AS# 91-20-3: <br /> Draize test, rabbit, eye: 100 mg Mild; <br /> Inhalation, rat: LC50 = >340 mg/m3/1H; <br /> Oral, mouse: LD50 = 316 mg/kg; <br /> ' Oral, rat: LD50 = 490 mg/kg; <br /> Skin, rabbit: LD50 = >20 gm/kg; <br /> Skin, rat: LD50 = >2500 mg/kg; <br />