1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP) By Shandong Taihe Chemicals Co., Ltd,
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1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)
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1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP)

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Shandong Taihe Chemicals Co., Ltd

Shandong Taihe Chemicals Co., Ltd

China

1333 Points de confiance

Personne à contacter Ms. Hao

Shizhong Districr, Zaozhuang, Shandong

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Spécification du produit

La description

*-Hydroxy Ethylidene*1, *-Diphosphonic Acid (HEDP) CAS No. ********4 Molecular Formula: C2H8O7P2 Molecular weight: **6.*2 Propertiesof HEDP: HEDP is an organophosphoric acid corrosion inhibitor. HEDP can chelate with Fe, Cu, and Zn ions to form stable chelating compounds. HEDP can dissolve the oxidized materials on these metals' surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature **0 C. 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, HEDP 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, HEDP can be used as cleaning agent in electronic fields and as additives in daily chemicals. Specification of HEDP: Appearance: Colorless or light yellow transparent liquid White crystal powder Active content (HEDP)%: *8.***2.0 *0.0 min Phosphorous acid (as PO**-)%: 2.0 max 0.5 max Phosphoric acid (asPO**- )%: 0.8 max 0.5 max Chloride (as Cl-)% 0.*1 max 0.*1 max pH (1% solution): 2 max 2 max Density (*0 C)g/cm3: 1.*0 - Fe ion ppm: *0 max *0 max Colour APHA (Hazen): *0 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, ***** light woven industry, HEDP is used as detergent for metal and nonmetal.

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

Mots-clés correspondants Shandong Taihe Chemicals Co., Ltd

Polyacrylic Acid (PAA) Polyacrylic Acid (PAA)
Copolymer of Maleic and Acylic Acid (MA/AA) Copolymer of Maleic and Acylic Acid (MA/AA)
Tetrakis(hydroxymethyl)phosphonium sulfate(THPS) Tetrakis(hydroxymethyl)phosphonium sulfate(THPS)

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