Alum, esp. rock alum. Cf. roche alum, n. Obsolete.
单词 | θ71384 |
释义 | the world > matter > chemistry > chemical substances > salts > [noun] > alums > types > others (4) roche1381 Alum, esp. rock alum. Cf. roche alum, n. Obsolete. alum glassc1405 (a) a glassy form of alum produced esp. by evaporating an aqueous solution (now historical); (b) a kind of glass containing alumina. Carlsbad salts1895 Old Chemistry. Particular substances of this class are distinguished by defining words (cf. sal, n.1); e.g. †salt ammoniac (= sal ammoniac, n.), †esse… Vichy salts1960 Old Chemistry. Particular substances of this class are distinguished by defining words (cf. sal, n.1); e.g. †salt ammoniac (= sal ammoniac, n.), †esse… |
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