Organic Chemicals
HEDP--1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
Description
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2 Molecular weight: 206.02
Properties:
HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals?surfaces.
Specification of HEDP
Appearance Colorless or light yellow transparent liquid
Active content (HEDP)% 58.0-62.0
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 g/cm3 1.40
Fe ion ppm 10 max
Colour APHA (Hazen) 40 max
Package and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required
Keywords: HEDP,HEDP.Na,HEDP.Kx
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