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| Product Name: |
HEDP 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
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| Supply Ability: |
40000ton |
| Related proudcts |
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| Specifications |
Active content (HEDP)% 58.0-62.0 & 90.0min |
| Price Term: |
FOB & CIF |
| Port of loading: |
Shanghai |
| Minimum Order |
1000kgs |
| Unit Price: |
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1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2
Molecular weight: 206.02
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.
Specification:
Appearance Colorless or light yellow tran***rent liquid White crystal powder
Active content (HEDP)% 58.0-62.0
Phosphorous acid (as PO33-)% 2.0 max
Phosphoric acid (asPO43- )% 0.8 max
Chloride (as Cl-)% 1.0 max
pH (1% solution) 2 max
Density (20℃)g/cm3 1.40
Fe£¬mg/L 10 max
Colour APHA (Hazen) 40 max
Usage:
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 ***ergent 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 ***ergent. Usually, HEDP is used together with polycarboxylic acid.
Package and Storage:
HEDPliquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner poly |
| Company: |
SHANDONG TAIHE CHEMICALS CO., LTD.
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| Contact: |
Ms. Laurel Ren |
| Address: |
Customs Building,10 Xinghua Road,Shizhong district, Zaozhuang city, Shandong Province, P. R. China |
| Postcode: |
277100 |
| Tel: |
15163261728 |
| Fax: |
0632-5112055 |
| E-mail: |
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