CAS 2809-21-4 HEDP 60% 90%

Min.Order / FOB Price:Get Latest Price

25 Kilogram	Negotiable

25 Kilogram

Negotiable

Min.Order :25 Kilogram
Purity: 50% 60% 90%
Payment Terms : L/C,D/A,D/P,T/T,,MoneyGram

Keywords

2809-21-4 HEDP 60% 1-Hydroxyethylidene-1,1-diphosphonic acid

Quick Details

Appearance:colorless and clear liquid
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. In
PackAge:HEDP liquid: 250Kgnet in plastic drum. HEDP solid: 25kg net in plastic woven bag.
ProductionCapacity:2000|Metric Ton|Year
Storage:stored in cool and dry place
Transportation:by sea,by air,by express

Superiority:

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.

Details:

Specifications Items	GB/T26324-2010		HG/T3537-2010
Appearance	Colorless to pale yellow transparent liquid		White powder solids
Active content (as HEDP), %	50.0 min	60.0 min	90.0 min
Phosphorous acid (as PO33-), %	2.0 max	2.0 max	0.80 max
Phosphoric acid (asPO43-), %	0.8 max	0.8 max	0.50 max
Chloride (as Cl-), ppm	0.1 max	0.1 max	0.1 max
pH (1% solution)	1.5-2.0	1.5-2.0	1.5-2.0
Density (20°C), g/cm3	1.34 min	1.40 min	——
Active content (as HEDP·H2O), %	——	——	98.0 min
Calcium chelating value, mg/g	450 min	500 min	800 min
Fe (as Fe3+), mg/L	10 max	10 max	5 max