1) unmercuric determination of iron
无汞盐测铁法
1.
The unmercuric determination of iron (methyl orange used as indicated agent) is studied in this paper.
对无汞盐测铁法 (甲基橙为指示剂 )进行了试验研究 ,确定了最佳测定条件为 :溶样时间 2 5min ,还原酸度 4。
3) without mercurate
无汞盐
4) measuring TFe with the existence of HgCl 2
有汞测铁
5) mercury-free determination
无汞测定
1.
This article has described a new mercury-free determination method for iron oxide,which used methyl orange or titanium trichloride instead of mercury chloride for removing of residual SnCl2.
本文介绍了对有汞测定加以改进的无汞测定法,以甲基橙或三氯化钛代替氯化汞去除残留氯化亚锡。
6) none mercury method
无汞法
1.
A method of the experiment of determination of iron in ferrous ore by none mercury method is improved.
对无汞法测定铁矿石中铁含量的实验进行改进,采用SnCl2直接还原无色钨酸钠为蓝色,不需加入TiCl3。
补充资料：熔盐电解法生产铌粉(见熔盐电解法生产钽粉)
熔盐电解法生产铌粉(见熔盐电解法生产钽粉)
production of niobium powder by molten salt electrolysis
rongyand+onjlefa ShengChan n.fen熔盐电解法生产妮粉(produetion。fn;obi-um powder by molten salt eleetrolysls)见熔盐电解法生产担粉。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条