研究了采用可溶性钙盐对以乳酸为络合剂，次磷酸盐为还原剂的失效化学镀镍溶液的再生。
The method using soluble calcium salt for regeneration of waste electroless nickel plating liquor, in which the lactic acid used as complexing agent and hypophosphite used as redcing agent is studied.
由于金属铜对次磷酸钠的氧化没有催化作用，需要加入镍离子作为催化剂。
The electroless copper plating system with sodium hypophosphite as the reducing agent has been received people's attention.
本文主要探讨了化学镀镍液中影响次磷酸钠浓度测定准确度的因素，并相应地提出了行之有效的解决方法。
This papers not only explores which factors make the consistency determination of the NaH_2PO_2 non-accurate in the chemical nickle-plated aqua , but also advance some feasible resolutions.
本文主要探讨了化学镀镍液中影响次磷酸钠浓度测定准确度的因素，并相应地提出了行之有效的解决方法。
This papers not only explores which factors make the consistency determination of the NaH_2PO_2 non-accurate in the chemical nickle-plated aqua , but also advance some feasible resolutions.
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