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本文研究了有机酸在化学物相分析中的应用问题.通过对其酸效应影响的探讨,证明CH_8COOH-CH_8COONa—H_2O_2溶液(pH～4.5)是硫化铁矿物有效的选择性溶剂.其主要特点是共存的铁绿泥石、铁橄榄石等易溶性硅酸铁矿物均不干扰.方法用于铁矿石中硫化铁的分离测定,结果比较满意.
In this paper, we study the application of organic acids in chemical phase analysis. Through the discussion of its acid effect, CH_8COOH-CH_8COONa-H_2O_2 solution (pH ~ 4.5) is an effective and selective solvent for iron sulfide minerals. Coexisting iron chlorite, fayalite and other soluble iron silicate minerals are not interfering with the method for the determination of iron sulfide iron sulfide, the results are satisfactory.