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一、前言硫铁矿中锌含量的测定,已有国家标准(GB2467—81)。在硫铁矿的销售验收过程中都按国家标准(即极谱示波法和PAN比色法)来进行测定;但在硫酸生产的过程中,生产单位也可应用EDTA容量法来进行锌含量的测定。
I. Introduction The determination of zinc content in pyrite has been the national standard (GB2467-81). In the pyrite sales acceptance process according to national standards (ie polarographic oscillometry and PAN colorimetric method) to be measured; but in the sulfuric acid production process, the production unit can also be used EDTA volumetric method for zinc content The determination.