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1 I, I I I~ i~ 5.2.5 Laboratory Chemicals The proper procedures for responding to a spill of a lab reagent is as follows: Acids: • An acid resistant suit (e.g. rubber apron, and complete protective equipment including rubber shoes, rubber over-boots, eye protection, face shield, rubber elbow length gloves and respirator with appropriate filtering protection) will be worn. • Contain the spill using absorbent socks and dividers located in the spill kits in both the wet and metallurgical labs. • Carefully, neutralize the spill using lime located in buckets in the work area or flush spill area with large amounts of water. These buckets are labeled for this application specifically. Provide for adequate ventilation as carbon dioxide gas may be generated by the reaction. • Used absorbent socks should be disposed of in a sealable bucket and the mop and bucket used in the cleanup should be completely rinsed in the acid sink. Bases: • Wear a chemical resistant suit (e.g. rubber apron, and complete protective equipment including rubber shoes, rubber over-boots, eye protection, face shield, rubber elbow length gloves and a respirator with appropriate filtering protection). • If the caustic soda sodium hydroxides is dry, shovel up any spill and dispose of the solid in the base sink with an excessive amount of water. • If the caustic is in solution then use absorbent socks to contain the spill and add large amounts of water. After the water has been added, neutralize the solution with a dilute acid solution. Used, absorbent socks should be disposed of in a sealable bucket and the mop and bucket used in the clean up should be completely rinsed and disposed of in an appropriate manner that complies with State and Federal Regulations. Sodium Cyanide: • If water is present, aself-containing breathing apparatus may be necessary. • For a dry spill, shovel the contents into a sealable bucket and label appropriately. Remove the contents to ADR for disposal io the VLF. • For liquid spills, contain the area with the absorbent socks and flush the spill area with Calcium Hypochlorite and large amounts of water. Used absorbent socks should be disposed of in a labeled sealable bucket and the mop and bucket used in the cleanup should be completely rinsed and disposed of in an appropriate manner that complies with State and Federal Regulations (contact the Environmental Resources Department). _ Cunels and Crucibles: • The lab produces cupels and crucibles that contain recoverable metals, including lead. Cupels and crucibles are handled in a manner intended to minimize the potential for spillage. While the spillage would usually be within the laboratory facility, some debris could be released to the ground during transport to the storage area, or during transfer to trucks used far shipping of these materials to facilities for recovery of metals values. In the event of such a release, the material must be picked up in its entirety and placed with the materials to be recycled for metals recovery. 34