| 单词 | ammonium alum |
| 例句 | It forms very deliquescent long white needles melting at 75.5� C. and boiling at 215-220� C. The bromide, iodide and sulphate are known, as is also gallium ammonium alum. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z |
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