Pure etidronic acid is white crystal, industrial etidronic acid is colorless to light yellow transparent liquid, soluble in water, methanol and ethanol. Hydroxyethylidene diphosphonic acid is a kind of chemical raw material, which is often used in industrial water treatment, household cleaning products and personal care products. This product is the main material of cyanide free electroplating. It is used to prepare cyanide free copper electroplating solution. The copper coating directly plated on sodium iron has good adhesion, smooth coating and good color. In addition, hydroxyethylidene diphosphonic acid is often used as scale and corrosion inhibitor in boiler water, circulating water and oilfield water injection treatment. It is generally combined with polyhydroxy acid scale inhibitor and dispersant, and can also be used as color fixing agent and hydrogen peroxide stabilizer in bleaching and dyeing industry.
Manufacturing
