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一般合金钢中铜的测定,在我国采用比色法较多。对于含铜量较高的试样,则采用经典的硫代硫酸钠沉淀,硫代硫酸钠滴定碘量法。该方法在操作上要经过灰化,灼烧等,手续繁多,操作中又放出大量硫蒸气,对人体有害。鉴于此种情况,我们研究了铜试剂分离,硫代硫酸钠容量法测定合金钢中高含量铜,并作了系统的条件试验。该方法优点是操作简单,不经
General alloy steel in the determination of copper, colorimetric method in our country more. For samples with higher copper content, the classic sodium thiosulfate precipitation, sodium thiosulfate titration iodometric method. The method in the operation to go through ashing, burning, etc., a large number of procedures, the operation also released a lot of sulfur vapor, harmful to humans. In view of this situation, we studied the separation of copper reagents, sodium thiosulfate volumetric method for the determination of high content of copper in alloy steel, and the system conditions were tested. The advantage of this method is easy to operate