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Hill Brothers Chemical Company-Sodium Hydroxide 50% Liquid http://www.hilllirothers.com/msds/sh501igd.hm~ <br />• • <br />Physical State: Liquid pH: 14.0 <br />Melting Point/Range: 12.8°C; 55°F Boiling Point/Range: 120°C; 248oF <br />• Appearance/Color/Odor: Cleaz to slightly gray liquid with no odor <br />Solubility in Water: Complete Vapor Pressure(mmHg): 1.6 @ 20°C; 68°F <br />Specific Gravity(Water =1): 1.525 @ 20°C Molecular Weight: 40.00 (dry basis) <br />Vapor Density(Air =1): N/A % Volatiles: 50% <br />Freezing Point: 12.1°C; 54°F <br />How to detect this compound :Sampling and analyses may be performed by collection of sodium <br />hydroxide in a glass bubbler containing hydrochloric acid, followed by subsequent titration. Also, <br />detector tubes certified by NIOSH under 42 CFR Part 84 or other direct-reading devices calibrated to <br />measure sodium hydroxide may be used. <br />Section IV -Fire and Explosion <br />Flash Point: Not combustible Autoignition Temperature: Not combustible <br />Lower Explosive Limit: N/A Upper Explosive Limit: N/A <br />Unusual Fire and Explosion Hazards: Not combustible but solid form in contact with moisture or <br />water may generate sufficient heat to ignite combustible materials. Contact with some metals can <br />generate hydrogen gas. <br />Extinguishing Media: This product is not combustible. Water spray, foam, carbon dioxide, or dry <br />chemicals may be used where this product is stored. <br />Special Firefighting Procedures: Full protective clothing and self-contained breathing appazatus <br />should be wom in azeas where product is stored. <br />Section V -Reactivity <br />Stability: Stable Hazardous Polymerization: Will not occur <br />Conditions to Avoid: Overheating in storage accelerates corrosion. <br />Materials to Avoid: Contact with acids, flammable liquids, and organic halogen compounds, <br />especially trichloroethylene, may cause fires and explosions. Contact with metals such as aluminum, <br />tin, and zinc and alloys containing these metals causes formation of flammable hydrogen gas. Contact <br />with nitromethane and other similaz nitro compounds causes formation of shock-sensitive salts. <br />Contact with water releases heat which can result in boiling and splattering. <br />Hazardous Decomposition Products: None <br />Section VI -Health Hazards <br />Routes of Exposure: Sodium hydroxide can affect the body if it is inhaled or if it comes in contact with <br />the eyes or skin. It can also affect the body if it is swallowed. <br />Summary of Acute Health Hazards <br />Ingestion: Swallowing sodium hydroxide may cause severe burns of the mouth, throat, esophagus, and <br />stomach. Death may result. Severe scarring of the throat may occur on recovery after swallowing sodium <br />hydroxide. An increased number of esophageal cancer cases have been reported to occur in individuals <br />who have scarring of the esophagus from swallowing sodium hydroxide. <br />• Iuhalatiou: Effects from inhalation of the dusts, mists, or spray will vary from mild irritation to <br />destructive bums depending on the severity of exposure. Severe pneumomns may occur. <br />2 of 5 10/14/99 1:35 PM <br />