摘要
详细地研究了显色剂偶氮氯膦Ⅲ与Ti(Ⅳ)的显色反应和所形成的络合物,该络合物的λmax=690nm,表观摩尔吸光系数为1.47×105L·cm-1·mol-1,钛在0～1.0μg/mL内服从比尔定律,所拟定的方法能满意地用于还原用铁粉、粉末冶金铁粉和钢中微量钛的分光光度测定。
Detailed study is made of the color reaction of Ti (Ⅵ) with Chlorophosphonazo Ⅲ and the resultant complex compound at λ_(max)=690 nm and apparent apsorption coefficient 1.47×10~5 L·mol^(-1)·cm^(-1).Beer's law is followed when Ti is at 0～1.0 ug/mL.The proposed method is satisfactory for determination of trace Ti in reduction iron powder and PM Ti powder.
出处
《稀有金属与硬质合金》
CAS
CSCD
2004年第1期29-31,共3页
Rare Metals and Cemented Carbides
关键词
偶氮氯膦Ⅲ
分光光度法测定
钛
ChlorophosphonazoⅢ
spectrophotometric determination
Ti
