| 释义 |
langbeinite Min.|ˈlæŋbaɪnaɪt|
[ad. G. langbeinit (S. Zuckschwerdt 1891, in Zeitschr. f. angew. Chem. 356/2), f. the name of A. Langbein, 19th-cent. German chemist + -it -ite1.]
A sulphate of potassium and magnesium, K2Mg2(SO4)3, colourless when pure, which is known only in salt deposits of marine origin and as a synthetic product, and is used in the production of fertilizers.
1898Jrnl. Chem. Soc. LXXIV. ii. 169 The crystals of langbeinite are optically inactive. 1932Bull. U.S. Geol. Survey No. 833. 41 Most of the langbeinite..has a distinctive pink color. It is the ‘hardest looking’ of the saline minerals and has a conchoidal or irregular fracture with no cleavage. 1951Mineral. Abstr. XI. 247 Langbeinite..on exposure to air falls to powder consisting of picromerite..and epsomite. 1960R. A. MacDonald in V. Sauchelli Chem. & Technol. Fertilizers xv. 387 Langbeinite..is mined and processed by International Mineral & Chemical Corporation in the Carlsbad basin... The product is marketed at a purity in excess of 95 per cent langbeinite. |