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单词 sodium hydrosulfite
释义

sodium hydrosulfite


sodium hydrosulfite

n. A yellowish powder, Na2S2O4, used as a bleaching and reducing agent. Also called hydrosulfite.

sodium hydrosulfite


sodium hydrosulfite

[′sōd·ē·əm ‚hī·drə′səl‚fīt] (inorganic chemistry) Na2S2O4 A fire-hazardous, lemon to whitish-gray powder; soluble in water, insoluble in alcohol; melts at 55°C; used as a chemical intermediate and catalyst and in ore flotation. Also known as sodium dithionite.
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