| 单词 | gold amalgam |
| 释义 | > as lemmasgold amalgam a. orig. A soft mass formed by chemical manipulation, esp. a soft or plastic condition of gold, silver, etc. produced by combination with mercury; hence, now, any mixture of a metal with mercury, a mercurial alloy, as gold amalgam, copper amalgam, etc. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > mercury alloys or amalgam > soft or spongy amalgam1471 pina1604 gold amalgam1795 society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > mercury alloys or amalgam argenture1576 magnesia1651 amalgam1665 philosophers' tree1692 philosophical tree1703 quick1852 native amalgam1875 1471 Ripley Comp. Alch. in E. Ashmole Theatrum Chem. Brit. 1652 ix. 174 When the Medcyn as wax doth flowe, Than uppon Malgams loke thou hyt throw. 1471 Ripley Comp. Alch. in E. Ashmole Theatrum Chem. Brit. 1652 ix. 191 Many Amalgame dyd I make. 1599 A. M. tr. O. Gaebelkhover Bk. Physicke 380/1 Beete a Ducket verye thinne..put therof j dr. to j oz. of Quicksiluer..The Amalgama must you wash with Saulte and Vineger. 1665 Philos. Trans. (Royal Soc.) 1 23 An Amalgama of Gold and Virgin-Mercury. 1758 W. Lewis in Philos. Trans. 1757 (Royal Soc.) 50 156 An amalgam of one part of platina and two of gold with a suitable quantity of mercury. 1782 Kirwan in Philos. Trans. (Royal Soc.) 72 217 An amalgama of lead and mercury decrepitates when heated. 1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xix. 200 An amalgam of ammonium can easily be prepared by [etc.]. gold amalgam gold amalgam n. [after German Goldamalgam (1672 as Gold-Amalgama)] solid or liquid matter consisting of gold combined with mercury, esp. as produced in the extraction of gold from rock or as used in gilding; a substance of this kind. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > alloy > [noun] > mercury alloys or amalgam > soft or spongy amalgam1471 pina1604 gold amalgam1795 1795 J. G. Schmeisser Syst. Mineral. II. 60 The cleaned surface of such metals [sc. as in gildings] is first coated with the mixture of gold and mercury, or gold-amalgam, and then exposed to heat. 1982 Jrnl. Afr. Hist. 23 538 By the early 1900s there were some nine different types of gold amalgam, bullion and so on, which Rand mining companies sent to Europe for smelting, assaying, refining and sale. 2001 Times 22 Mar. ii. 8/1 Goldsmiths (who used a gold amalgam for gilding), mirror-makers and hatters have all become accidental victims of mercury poisoning. < as lemmas |
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