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A strongly basic metallic hydroxide, most commonly of sodium, ammonium, and potassium, as well as carbonates. Because of their great combining power with water and their action on the fatty tissues, they cause rapid and deep tissue destruction. They have a tendency to gelatinize tissue, turning it a somewhat grayish color and forming a soapy, slippery surface, accompanied by pain and burning.See: corrosion; corrosive poisoning
See also: alkali
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