| 单词 | black liquor |
| 释义 | > as lemmasblack liquor black liquor n. (a) any of various black liquids used in dyeing; spec. a solution of lead acetate used as a mordant; also called iron liquor; (now rare); (b) a liquid residue containing lignin compounds and inorganic chemicals, formed when pulpwood is heated in alkaline solution in the kraft papermaking process. ΚΠ 1705 tr. Whole Art of Dying 259 From this mixture the Black Liquor, a Body of a new Figure, is produced. 1860 C. O'Neill Chem. Calico Printing x. 101 An impure solution of acetate of iron is made by digesting metallic iron with crude pyroligneous acid for some weeks; it has a black colour, and is known in trade as iron liquor and black liquor. 1911 Encycl. Brit. XXVI. 702/1 The iron mordant which gives the best results is known as ‘black liquor’. 1935 Sewage Wks. Jrnl. 7 288 (heading) The toxic effects of waste sulphate liquor (black liquor) on fish. 2007 Wall St. Jrnl. 12 Feb. r4/3 Weyerhaeuser, for example, makes electricity..by burning hog fuel, or wood waste, and black liquor, a pulp-mill byproduct. < as lemmas |
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