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(一)前言铋矿加工试验之目的,系以国产铋矿砂用原料,制备种种铋之化合物,以作化学药品,医药品,或其他工业上之用途。工商界通常多利用冶金方法,从铋矿砂提炼金属铋,再制成铋化合物。本试验则以铋矿砂为起点,用化学方法制备之。无机化合物之已制成者,计有铋酸钠,硝酸铋及硝酸氧铋等。铋酸钠多用于化学方面,例如分析锰时甚为重要。硝酸铋亦用于化学药品方面,且可用以制备,其他铋化合物;硝酸氧铋,则大量用于医药。本试验系以实地方法推进之,是为铋砂加工新法之尝试。
(I) Preface The purpose of the bismuth ore processing test is to prepare various bismuth compounds from raw materials for bismuth ore made in China for chemical, pharmaceutical, or other industrial uses. Often the business community uses metallurgical methods to extract metallic bismuth from bismuth ore and make bismuth compounds. This test is to bismuth ore as a starting point, prepared by chemical methods. Has been made of inorganic compounds, including sodium bismuthate, bismuth nitrate and bismuth nitrate and so on. Sodium bismuth is mostly used in chemistry, for example when analyzing manganese. Bismuth nitrate is also used in chemicals, and can be used to prepare other bismuth compounds; bismuth nitrate, then a lot for medicine. This test is based on field methods to promote the bismuth sand is a new attempt to try.