... municipal cleaning water system and swimming pool.The solid HEDP•Na4 is white powder, soluble in water, easily deliquescence, ... , metallurgy, fertilizer, etc.. In light woven industry, HEDP•Na4 is used as detergent for metal and nonmetal. In dyeing ... and dye-fixing agent; In non-cyanide electroplating, HEDP•Na4 is used as chelating agent. Specification:itemsindexAppearanceWhite powderColorless to ...