| 释义 |
aluminum sulfate
noun
: a salt Al2(SO4)3 colorless when pure that crystallizes with 18 molecules of water (as in alunogen) but is commonly desiccated to about 14 H2O, that is usually made by treating bauxite with sulfuric acid, and that is used chiefly in papermaking, in water purification, in sewage treatment, in tanning, in dyeing as a mordant, and in flameproofing — called also alum, filter alum, papermakers' alum |