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羟基乙叉二膦酸二钠盐(1-hydroxy eth-ylidene-1。1-disodium phosphonate 简称HEDP)是一类有机磷化合物(一种络合剂)。近十多年来美、英等国采用 HEDP 类有机多磷酸盐作为通用的电镀络合剂,以取代氰化
1-hydroxy eth-ylidene-1.1-disodium phosphonate (HEDP) is a class of organophosphorus compounds (a complexing agent). Over the past decade the United States, Britain and other countries using HEDP-type organic polyphosphate as a common plating complexing agent to replace cyanide