| 单词 | 沉淀剂 |
| 释义 | 〔alum〕Any of various double sulfates of a trivalent metal such as aluminum, chromium, or iron and a univalent metal such as potassium or sodium, especially aluminum potassium sulfate, AlK(SO4) 2·12H 2O, widely used in industry as clarifiers, hardeners, and purifiers and medicinally as topical astringents and styptics. 明矾，白矾：一种三价金属双硫酸盐，如铝、铬、铁和单价金属如钾或钠，特别是铝钾硫酸盐AlK(SO4) 2·12H 2O，在工业上广泛用作沉淀剂、硬化剂和净化剂，医学上用作局部收敛剂和止血剂 〔precipitant〕A substance that causes a precipitate to form when it is added to a solution.沉淀剂：加入溶液中使沉淀物生成的物质 |
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