Hedp 60 %

Product Description

HEDP 60% liquid

Specifications:

Appearance Colorless to pale yellow aqueous solution
Active content (HEDP)% 58.0-62.0
Phosphorous acid (as PO33-)% 1.0 max
Phosphoric acid (asPO43- )% 0.6 max
Chloride (as Cl-) ppm 100.0 max
pH (1% solution) 2.0 max
Density g/cm3 1.43-1.47
Fe,mg/L 10.0 max
Colour APHA (Hazen) 30.0 max
Ca sequestration (mg CaCO3/g) 500.0 min

Application of HEDP

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..

HEDP is used 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 110mg/L is preferred as scale inhibitor,
10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. 
HEDP is usually used together with polycarboxylic acid.
HEDP is listed as an ingredient of several cosmetic formulations where it is used for suppressing radical formation, emulsion stabiliser and viscosity control.