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Ⅰ绪言未知岩、矿石中含有金属的检定,按着系统的定性分析法,逐步进行,固然是稳当可靠,但操作上无论人力、物力及时间的损失未免太大。因此,对于特殊的金属——即使仅限于定性的,需要迅速而简便的检出法,多少能满足此条件者,即本文介绍的低亚磷酸铵熔融的新方法。(Ind.Eng.Chem.,Anal.Ed.,13(1941),459)许多岩矿石与低亚磷铵熔融,则被分解,而融块往往带着显明的颜色。金属中如铬、钴、钶(Columbium 或Niobium),锰、钼、碲(Tellurium),钛(Fitanium),铀、钒及钨,得按其着色或用水,
Ⅰ INTRODUCTION Unknown rock, ore containing metal test, according to the system of qualitative analysis, and gradually, of course, is reliable and reliable, but the operation regardless of manpower, material and time losses too much. Therefore, for a particular metal - even if it is qualitative only - requires a quick and easy checkout, how many of those that satisfy this condition, the new method of melting low ammonium phosphite described in this article. (Ind. Eng. Chem., Anal. Ed., 13 (1941), 459) Many rock ores melt with low-ammonium-phosphine and are decomposed, while the melt tends to carry significant color. In metals such as chromium, cobalt, gallium (Columbium or Niobium), manganese, molybdenum, Tellurium, Fitanium, uranium, vanadium and tungsten, colored or water-