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Personne àcontacter Ms. star
liuquan road, zibo, shandong
*-Hydroxy Ethylidene*1, *-Diphosphonic Acid (HEDP)
CAS No.:Â ********4Â Â
Molecular Formula:Â Â
C2H8O7P2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Molecular weight: **6.*2
Structural Formula:
Â
Properties:
HEDP is an organphosphoric 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 **0℃. 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 organ phosphoric 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.Â
Specification:
items index
Appearance Colorless or light brown liquid  White
crystal powder
Active content (HEDP)% ≥ *0.0    Â
*0.0Â *9.0
Phosphorous acid (as
PO**-)%≤ 2.0      2.0
 0.*0
Phosphoric acid (asPO**- )%
≤ 0.8      0.8  0.*0
Chloride (as Cl-)%≤      Â
1.0Â Â Â Â Â Â 1.0Â 0.*0
pH (1ï¼… solution)
≤ 2       Â
2Â 2.0
Density (*0℃)g/cm3≥ 1.*4   Â
1.*0 ——
Fe ion ppmÂ
≤ *0       *0
 5.0
Active content (as HEDP•H2O )% ≥ —— *8.0
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, ***** In light woven industry, HEDP is used as
detergent for metal and nonmetal. In dyeing industry, HEDP is
used as peroxide stabilize
| Pays: | China |
| N ° de modèle: | 2809-21-4 |
| Prix FOB: | Obtenir le dernier prix |
| Localité: | - |
| Prix de commande minimale: | - |
| Commande minimale: | 1 |
| Packaging Detail: | - |
| Heure de livraison: | - |
| Capacité de Fournir: | 10000 |
| Payment Type: | - |
| Groupe de produits : | - |
