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Factory supply highest quality HEDP
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Product Details
| CAS No.: | 2809-21-4 | Other Names: | 1-Hydroxy Ethylidene-1,1-Diphonic Acid | MF: | C2H8O7P2 |
| Purity: | 60% | Place of Origin: | Henan, China | Type: | Adsorbent |
| Adsorbent Variety: | Activated Carbon | Usage: | Textile Auxiliary Agents, Water Treatment Chemicals | Brand Name: | MHC |
| Model Number: | HEDP |
Product Description
Factory supply highest quality HEDP
MF:C2H8O7P2
MW: 206.02
PH:2 max
UN NO:3265
HS code: 2931901990
Properties of HEDP:
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 hexaelement 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.
Specification of HEDP:
item | |
Appearance | Colorless or light yellow transparent liquid |
Active,content(HEDP)% | 60% |
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,(20℃)g/cm3 | 1.40 |
Fe,ion,ppm | 10,max |
Colour,APHA,(Hazen) | 40,max |
Usage 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.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000 2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
Package and Storage of HEDP:
HEDP liquid: Normally In 250kg net Plastic Drum,IBC drum can also be used as required.
Contact Us
- Zhengzhou Mahaco Commercial Co., Ltd.
- Contact nameAnny Yang
- Phone86-371-55805997
- AddressNo. 2 7 ,New East Industrial Zone,Zhengzhou Zhengzhou,Henan
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