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单词 potassium hydroxide
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potassium hydroxide
potassium hydroxide n. a white deliquescent solid, KOH, which gives a strongly alkaline solution in water; also called caustic potash.
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1866 H. E. Roscoe Lessons Elem. Chem. xix. 185 Thrown into water, one atom of potassium displaces one of hydrogen from the water, forming potassium hydroxide, or potash, KHO.
1943 Thorpe's Dict. Appl. Chem. (ed. 4) VI. 388/2 An alcoholic solution of potassium hydroxide is sometimes used for hydrolysing purposes.
1985 R. A. E. North Cleaning Professional Kitchens (BNC) 29 Caustic cleaners are essentially formulations of detergent and either sodium or potassium hydroxide.
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