库仑法测定石墨中全硫含量  

Determination of total sulfur in graphite by coulomb method

作　　者：孙红燕 Sun Hongyan(Shandong Qidu Pharmaceutical Co.,Ltd.,Zibo 255400,China)

机构地区：[1]山东齐都药业有限公司,山东淄博255400

出　　处：《冶金标准化与质量》2023年第3期20-21,39,共3页Metallurgical Standardization & Quality

摘　　要：对石墨用库仑法测定全硫含量进行研究,试料在催化剂的作用下,于空气流中燃烧分解,石墨中硫生成硫氧化物,其中二氧化硫被碘化钾溶液吸收,以电解碘化钾溶液所产生的碘进行滴定,根据电解所消耗的电量计算石墨中全硫含量。The determination of total sulfur content by coulometric method of graphite was studied,and the sample material was burned and decomposed in the air stream under the action of the catalyst,and sulfur in graphite generated sulfur oxides,in which sulfur dioxide was absorbed by potassium iodide solution,and the iodine produced by electrolysis of potassium iodide solution was titrated to calculate the total sulfur content in graphite according to the electricity consumed by electrolysis.

关 键 词：石墨 全硫 电解 库仑法 

分 类 号：P57[天文地球—矿物学] TQ165[天文地球—地质学] TQ175.4[化学工程—高温制品工业]