1-Hydroxy Ethylidene-1,1-Diphosphonic Acid / CAS 2809-21-4

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

Product Description:

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.

CAS: 2809-21-4

Alias: 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid,  Dequest 2010,  HEDPA

MF: C2H8O7P2

MW: 206.028

Structure:

Specification

Applications

HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; in non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.

Packaging and storage

HEDP liquid is packed in plastic drums, each with a net weight of 250Kg. The solid of this product is packed in plastic woven bags, 25Kg/bag, which can also be determined according to user needs. It is stored in a cool indoor place, with a storage period of 10 months.

Safety Protection

HEDP is weakly acidic, so contact with eyes and skin should be avoided. Once it is splashed on the body, wash it with plenty of water immediately.

Chelating agent, scale and corrosion inhibitor, HEDP, water treatment agent, chelating dispersant, retarder, corrosion and scale inhibitor.