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铜元素的分析,一般是用硫代硫酸鈉——碘量法。我們化驗室由于碘化鉀的供不应求,铜元素分析几乎处于半停滞状态,采探矿試样大批积压,不能及时提出分析結果,严重地影响地質工作的正常进行。我室在矿党委的領导下开始了这方面的試驗工作。当时同志們共提出了四种方法分头进行試驗,但所得結果都不能令人滿意。关于用特里隆B测定銅的資料,在我們化验室是缺乏的。根据N.B.舍馬年科夫著“矿物原料化学和物理化学分析法”一書中提到“紫脲酸銨能作为銅离子和鎳离子的指示剂,这些本身有色的离子在氨性溶液中,当有过量的特里隆B时与紫脲酸銨結合而显著的由金黃色变为深紅色”一句話,大大地启发了我們。但經过我們試驗認为不能在氨性溶液中而应在醋酸酸性溶液中,試驗所得結果尚令人滿意。
Analysis of copper, the general is sodium thiosulfate - iodometric method. Due to the short supply of potassium iodide in our laboratory, the analysis of copper element is almost in a state of semi-stagnation. A large backlog of prospecting samples can not be put forward in time to seriously affect the normal operation of geological work. My room began the pilot work in this area under the leadership of the coal mine party committee. At that time, the comrades proposed a total of four methods to conduct experiments separately, but the results were unsatisfactory. Information on the determination of copper using terriol B is scarce in our laboratory. According to NB Shemanenkov with “mineral chemical and physical and chemical analysis of the law,” a book mentioned in the book, “ammonium uivalate as a copper ion and nickel ion indicator, the color of their own ions in ammonia solution, When there is an excessive amount of terriol B, it binds to the ammonium urate and the color changes from golden yellow to deep red. ”In a word, it greatly inspired us. However, after our test that can not be in the ammonia solution should be in acid solution in acetic acid, the test results are still satisfactory.