摘要
将试样经磷酸溶解，加入过量硝酸破坏碳化物，并在高温条件下将钒定量氧化，经氧化后的五价钒用硫酸亚铁铵还原，根据硫酸亚铁铵的耗用量来计算试样中钒的百分含量．
The specimen are dissolced in orthophoric acid. Then excessivehydrogen nitrate is added into the solution to break down the carbide,theelement,vanadium,is oxidized quantitively unedr high temperature and deacidized with ferrousammonium sulfate. so,the content of vanadium can be calculated according to the amount offerrous ammonium sulfate consumed.
关键词
硝酸氧化
亚铁容量
快速分析
合金钢
nitric acid oxidating, ferrous ammonium sulfate titrition, fast analyzing
