HEDP 60%

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HEDP 60%

CAS:
2809-21-4
Formule moléculaire:
C2H8O7P2
Norme de qualité:
60%
D’emballage:
250kg/drum or 25kg/drum
Ordre de mininmum:
1,000 kg
Price inquiry:
sales@tnjchem.com
Manufacturer:
TNJ Chemical

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Détails du produit

To buy HEDP 60% in bulk quantity from HEDP 60% suppliers, and get competitive HEDP 60% price from leading HEDP 60% suppliers. TNJ Chemical is professional HEDP 60% suppliers factory who can offer reasonable best price of HEDP 60%. With 16 years history in HEDP 60%, TNJ Chemical guarantees good quality and excellent service. If you need more information, please don't hesitate to contact sales@tnjchem.com

Etidronic acid HEDP CAS 2809-21-4, also called 1-Hydroxyethylidene-1,1-diphosphonic acid, 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.

Specification of HEDP

HEDP 58%-62% liquid

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

HEDP 98% solid

Appearance White crystal powder
Active content(HEDP)% 90.0 min
Active content (HEDP H2O)% 98.0 min
Phosphorous acid (as PO33-)% 0.8 max
Phosphoric acid (asPO43- )% 0.5 max
Chloride (as Cl-) ppm 100.0max
pH (1% solution) 2.0 max
Fe,mg/L 5.0 max

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..
1) In light woven industry, HEDP is used as detergent for metal and nonmetal.
2) In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent;
3) 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.

4) HEDP is usually used together with polycarboxylic acid.

5) HEDP is listed as an ingredient of several cosmetic formulations where it is used for suppressing radical formation, emulsion stabiliser and viscosity control.

Packing
Solid: 25kg per bag,25mt per 20ft container

Liquid: 250kg per drum,80drums per 20ft container

Storage & Transport
Stored in cool and airy place; away from fire and heat; handle with care; no breakage, avoid leakage.It is valid for 1 years under proper condition.
HEDP is classified as Dangerous Good for transport (UN 3261,Class 8,Packing group III)
Please refer to MSDS for more information about Safety,Storage and Transportation.

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