STORAGE GUIDELINES BY HAZARD CLASS
Caustics are materials with pH > 10. Examples include
ammonium hydroxide, calcium hydroxide, and sodium
Separate from acids.
Store solutions of inorganic hydroxides in polyethylene
Store large containers below eye level.
Acids are materials with pH < 5. Examples include acetic,
chromic, and hydrofluoric.
Separate from bases and materials that could evolve
toxic vapors on contact (i.e., sodium cyanide).
Store large bottles low to the ground -- at least below
Separate inorganic acids from organic acids (i.e., acetic,
Separate from active metals (i.e., sodium, potassium).
Store perchloric and nitric acid as oxidizers.
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