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IiYDROCIII,ORIC ACID, 33 - 40% <br />http:// .jtbaker.com/msds/h3880.hW <br />A Manua! of Recommended Practices, most recent edition, for detaz• <br />Personal Respirators (NIOSH Approved): <br />If the exposure limit is exceeded, a full facepiece respirator with an acid gas caztridge may <br />be worn up to 50 times the exposure limit or the maximlun use concentration specified by <br />the appropriate regulatory agency or respirator supplier, whichever is lowest. For <br />emergenctes or instances where the exposure levels aze not known, use afull-facepiece <br />positive-pressure, air-supplied respuator. WARNING: Air purifying respirators do not <br />protect workers in oxygen-deficient atmospheres. <br />Skin Protection: <br />Rubber or neoprene gloves and additional protection including impervious boots, apron, or <br />coveralls, as needed in azeas of unusual exposure to prevent skin contact. <br />Eye Protection: <br />Use chemical safety goggles and/or a full face shield where splashing is possible. Maintain <br />eye wash fountain and quick-drench facilities in work azea. <br />9. Physical and Chemical Properties <br />Appearance: <br />Colorless, fuming liquid. <br />Odor: <br />Pungent odor of hydrogen chloride. <br />Solubility: <br />Infinite in water with slight evolution of heat. <br />Density: <br />1.18 <br />pH: <br />• For HCL solutions: 0.1 (1.0 N), I.1 (0.1 N), 2.02 (O.OI N) <br />Volatiles by volume @ 21C (70F): <br />100 <br />Boiling Point: <br />53C (127F) Azeotrope (20.2%) boils at 109C (228F) <br />Melting Point: <br />-74C (-lO1F) <br />Vapor Density (Air-1): <br />No information found. <br />Vapor Pressure (mm Hg): <br />190 @ 25C (77F) <br />Evaporation Rate (BuAc=1): <br />No information found. <br />10. Stability and Reactivity <br />stability: <br />Stable under ordinary conditions of use and storage. Containers may burst when heated. <br />Hazardous Decomposition Products: <br />When heated to decomposition, emits toxic hydrogen chloride fumes and will react with <br />water or steam to produce heat and toxic and corrosive fumes. Thermal oxidative <br />decomposition produces toxic chlorine fiunes and explosive hydrogen gas. <br />Hazardous Polymerization: <br />• Will not occur. <br />Incompatibilities: <br />A strong mineral acid, concentrated hydrochloric acid is incompatible with many substances <br />and highly reactive with strong bases, metals, metal oxides, hydroxides, amines, cazbonates <br />4 of 7 10/14/99 1:32 PM <br />