Professional China Factory Supply Sodium Silicofluoride - 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) – Standard Imp&exp

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Professional China Factory Supply Sodium Silicofluoride - 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) – Standard Imp&exp Detail:

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Packaging: 25kg/bag 250kg/durm

Productivity: 500mt/month

Brand: std

Transportation: Ocean

Place of Origin: china

Supply Ability: 500mt/month

Port: Qingdao,Shanghai

Product Description

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

Molecular Weight: 206.02
Synonyms: HEDP,corrosion inhibitor
CAS No: 2809-21-4

Pakage: 250kg/durm or 25kg/bag

ITEM	crystal	liquid	liquid
HEDP.H2O	98% Min	50%min	60%min
HEDP	89% Max	–	–
PO3^3-	0.8%Max	1.0%Max	1.0%Max
PO4^3-	0.5% Max	0.6%Max	0.6% Max
Chloride	0.01% Max	0.01% Max	0.01% Max
PH	2	2	2
Fe (mg·L-1)	5max	10max	10max
Ca sequestration (mg CaCO3/g)	–	450min	500min
Density (20℃ )g/cm3	–	1.36	1.4
Colour APHA (Hazen)	–	10 max	10 max

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Product Categories : Water Treatment Chemicals

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