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Page 5 of 8 <br /> 1910.1048(h) Protective Equipment and Clothing and OSHA 29CFR 1910.1048(i) Hygiene <br /> Protection for other specific protective measures based on the form of formaldehyde, the <br /> conditions of use and the hazards to be prevented. <br /> 8.3 Exposure Guidelines <br /> 50-00-0 Formaldehyde <br /> ACGIH TLV Ceiling 0.3 ppm 0.37 mg/m3 A2-Suspected Human <br /> Carcinogen; SEN <br /> OSHA PEL 8-hr TWA 0.75 ppm 0.9 mg/m3 <br /> STEL (15 min) 2 ppm 2.5 mg/m3 <br /> 67-56-1 Methanol <br /> ACGIH TLV 8-hr TWA 200 ppm 262 mg/m3 Skin <br /> STEL(15 min) 250 ppm 328 mg/m3 <br /> OSHA PEL 8-hr TWA 200 ppm 260 mg/m3 <br /> Remanded TWA 200 ppm 260 mg/m3 Skin; 1989 PEL remanded, <br /> but in effect in some states <br /> Remanded 250 ppm 310 mg/m3 <br /> STEL <br /> 9. Physical and Chemical Properties <br /> Appearance Clear, colorless liquid <br /> Odor Pungent <br /> Odor threshold Not available <br /> Specific gravity 1.0775- 1.0865 <br /> pH 2.5-3.6 <br /> Freezing point See storage section <br /> Solubility in water Infinite <br /> Octanol/water partition coefficient Pow 0.35 <br /> Vapor pressure Approx. 40 mm Hg @39 °C(102 °F) <br /> Vapor density Approx. 1 <br /> Evaporation rate Less than 1 (Butyl Acetate= 1) <br /> Boiling point,760 mm Hg Approx. 100'C (212°F) <br /> 10. Stability and Reactivity <br /> Chemical Stabilities: <br /> Normally stable, but may further react at high temperatures to form methanol,formic acid or <br /> methylals.At low temperatures will self-polymerize to form paraformaldehyde. <br /> Incompatibilities: <br /> Reacts with many compounds. Reaction with phenol, strong acids or alkalis may be violent. <br /> Reaction with hydrochloric acid may form bis-chloromethyl ether, an OSHA regulated <br /> carcinogen. <br /> Decomposition products may include: <br /> CO, CO2 <br /> MSDS For Parasite-S by Western Chemical,Inc. <br />