Product Details

Liquid HEDP 60%

MF:C2H8O7P2

MW: 206.02

PH:2 max

UN NO:3265

HS code: 2931901990

Product Description

Properties of Liquid HEDP 60%:

HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250℃. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexaelement chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

Specification of Liquid HEDP 60%:

item
Appearance	Colorless or light yellow transparent liquid
Active,content(HEDP)%	60%
Phosphorous,acid(as,PO33-)%	2,0,max
Phosphoric,acid,(asPO43-,)%	0,8,max
Chloride,(as,Cl-)%	0,01,max
pH(1%,solution)	2,max
Density,(20℃)g/cm3	1.40
Fe,ion,ppm	10,max
Colour,APHA,(Hazen)	40,max

Usage of Liquid HEDP 60%:

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.

Package and Storage of Liquid HEDP 60%:

HEDP liquid: Normally In 250kg net Plastic Drum,IBC drum can also be used as required.

HEDP