(HEDP)1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

Min.Order / FOB Price:Get Latest Price

2 Metric Ton	Negotiable

2 Metric Ton

Negotiable

Min.Order :2 Metric Ton
Purity: Active content (HEDP)% 58.0-62.0 90.0 min
Payment Terms : L/C,D/A,D/P,T/T

Keywords

HEDP ETIDRONIC ACID Hydroxyethylidene-1,1-diphosphonicacid(HEDP

Quick Details

Appearance:Clear, Colorless to pale yellow aqueous solution White crystal powder
Application: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.. I
PackAge:HEDP liquid: 200L plastic drum,IBC(1000L),customers’ requirement. HEDP solid: 25kg/bag,customers’ requirement
ProductionCapacity:|Metric Ton|Day
Storage:Storage for ten months in room shady and dry place
Transportation:

Superiority:

Properties:

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 hexa-element 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.

The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.

Details:

Specification:

items	index
Appearance	Clear, Colorless to pale yellow aqueous solution	White crystal powder
Active content (HEDP)%	58.0-62.0	90.0 min
Active content (HEDP·H2O)%	-	98.0 min
Phosphorous acid (as PO₃^3-⁾%	1.0 max	0.8 max
Phosphoric acid (asPO₄^3- )%	0.6 max	0.5 max
Chloride (as Cl^-) ppm	100.0 max	50.0max
pH (1% solution)	2.0 max	2.0 max
Density (20℃)g/cm³	1.43-1.47	-
Fe，mg/L	10.0 max	5.0 max
Colour APHA (Hazen)	30.0 max	-
Acetic acid %	0.5 max
Ca sequestration (mg CaCO₃/g)	500.0 min

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