HEDP(Water Treatment)

1-Hydroxy Ethylidene-1,1-Diphosphonic (HEDP) CAS NO.:2809-21-4 HEDP is an organophosphoric acid corrosion inhibitor

Product name:1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)

 Uses: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

 

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
Molecular Formula	C2H8O7P2
CAS No.	2809-21-4
Appearance	Colorless or light yellow transparent liquid	White crystal powder
Active content(HEDP)%	58.0-62.0	90.0min
Phosphorous acid(as PO33-)%	2.0max	0.5max
Phosphoric acid (as PO43 )%	0.8max	0.5max
Chloride (as Cl-)%	1.0max	0.1max
pH(1% solution)	2max	2max
Density (20°C)g/cm3	1.40	—
Fe,mg/L	10max	5max
Colour APHA (Hazen)	40max	—
Packing	Normally In 250kg net Plastic Drum, IBC drum can also be used as required	25kg inner liner polyethylene (PE) bag, outer plastic woven bag,, or confirmed by clients.

HEDP(Water Treatment)