Characteristics
Strong acids and bases can destroy human tissue and corrode metals. Acids and bases are incompatible with one another and may react with many other hazard classes.
Laboratory Chemicals
Acids
Organic Acids
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acetic acid
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citric acid
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formic acid
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oxalic acid
Inorganic Oxidizing Acids
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chromic acid
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nitric acid
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perchloric acid
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sulfuric acid
Inorganic Non-Oxidizing Acids
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hydrochloric acid
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phosphoric acid
Bases
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ammmonium hydroxide
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calcium hydroxide
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potassium hydroxide
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sodium hydroxide
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tri-sodium phosphate
Non-Laboratory Chemicals
Acids
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muriatic acid (contains hydrochloric acid)
Bases
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drain declogger (containing sodium hydroxide)
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wall cleaner (containing tri-sodium phosphate)
Storage Precautions for Corrosives
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Segregate acids from bases. Segregate inorganic oxidizing acids (e.g., nitric acid) from organic acids (e.g., acetic acid), flammables, and combustibles.
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Segregate acids from chemicals that could generate toxic gases upon contact (e.g., sodium cyanide and iron sulfide).
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Segregate acids from water reactive metals such as sodium, potassium, and magnesium.
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Use tight-fitting goggles, gloves, and closed-toe shoes while handling corrosives.
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Store solutions of inorganic hydroxides in polyethylene containers.
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Store corrosives on lower shelves, at least below eye level and in compatible secondary containers.
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Do not store corrosives on metal shelves. Although ventilation helps, chemicals will still corrode the shelves. Store containers in plastic tubs or trays as secondary containment.
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If you notice powder deposits, discoloration, and crystallization around the cap of a container, particularly an oxidizing acid, contact EH&S immediately. The material may be potentially explosive.