The gravimetric method for determinating organic phosphonic acid HPBA with quinoline phosphomolybdate is studied.

用喹啉磷钼盐重量法对有机HPBA主含量测定进行了分析研究。

There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).

羟基乙叉洗后膜液选较少有人研究,而适膜钝化是防止洗后金属表面返锈必要措施。

E—M water treatment agent for boilers,composed of ethylenediamine tetramethylene phosphonic acid(EDTMP) and hydrolyzed polymaleic anhydride (HPMA),and its applications are introduced in this article.

介绍由乙胺四亚甲基(EDTMP)和水解聚马来(HPMA)组成锅炉水处理剂E—M配方及其应用实例。