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单词 alkali waste
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alkali waste
alkali waste n. residue from the manufacture of soda ash, consisting chiefly of calcium sulphide.
ΚΠ
1856 Times 14 July 6/4 The substance known as alkali makers' waste would be the most available source; alkali waste, however, being insoluble, it would have to undergo a chymical change to render it soluble.
1922 T. M. Lowry Inorg. Chem. xxxii. 570 Manufacture of soda by the Leblanc Process... The residue consists mainly of calcium sulphide, lime, and calcium carbonate and forms so-called alkali waste.
2000 W. A. Campbell in C. A. Russell Chem., Soc. & Environment iv. 90 Among uses for alkali waste which were explored and largely rejected were remedies for dry-rot and for potato and vine blight.
extracted from alkalin.adj.
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