| 单词 | potassium alum |
| 释义 | potassium alum (once / 3939771 pages) n WORD FAMILY potassium alum USAGE EXAMPLESWhen I checked the label, it said “potassium alum.” Seattle Times(May 15, 2013) The alum there produced is the double basic potassium alum, and crystallizes into cubes instead of octahedra, i.e., the Roman alum of commerce. Agricola, Georgius, De Re Metallica, Translated from th...(2011) A: Yes; potassium alum is hydrated potassium aluminum sulfate. Seattle Times(May 15, 2013) n a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum Syn|Hyper alum, potash alum Al, aluminium, aluminum, atomic number 13 a silvery ductile metallic element found primarily in bauxite double salta solution of two simple salts that forms a single substance on crystallization |
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