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| Product Name: |
HEDP
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| Supply Ability: |
20,000MTs |
| Related proudcts |
hedp, hedpa, etidronic acid, |
| Specifications |
60%min |
| Price Term: |
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| Port of loading: |
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| Minimum Order |
2MTs |
| 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
Structural Formula:
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.
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:
Appearance Clear, 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 (20â„?g/cm3 1.43-1.47 -
Fe，mg/L 10.0 max 5.0 max
Colour APHA (Hazen) 30.0 max -
Acetic acid % 0.5 max
Ca sequestration (mg CaCO3/g) 500.0 min
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 us |
| Company: |
Shandong Taihe Water Treatment Technologies Co., Ltd.
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| Contact: |
Ms. mable hou |
| Address: |
No.1, Shiliquan East Road, Shizhong District, Zaozhuang City, Shandong Province, P.R.China |
| Postcode: |
277100 |
| Tel: |
+86-18963231128 |
| Fax: |
+86-5112055 |
| E-mail: |
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