Prix FOB
Obtenir le dernier prix|
1 Ton Minimum Order
Pays:
China
N ° de modèle:
CAS No. 2809-21-4
Prix FOB:
Localité:
China
Prix de commande minimale:
-
Commande minimale:
1 Ton
Packaging Detail:
-
Heure de livraison:
-
Capacité de Fournir:
20000 Ton per Year
Payment Type:
T/T, L/C, D/P
Groupe de produits :
Personne àcontacter Mr. Aaron
Hongcun,Xiwang Town,Shizhong District, Zaozhuang, Shandong
HEDP (*-Hydroxy Ethylidene*1, *-Diphosphonic Acid)
CAS No.
********4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Molecular Formula:Â Â
C2H8O7P2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Molecular weight: **6.*2
Propertiesof HEDP:
HEDP is an organophosphoric acid corrosion inhibitor. It can
chelate with Fe, Cu, and Zn ions to form stable chelating ***** 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, 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 of HEDP:
AppearanceÂ
Colorless or light yellow transparent liquidÂ
White crystal powderÂ
Active content (HEDP)%Â Â Â *8.***2.0Â *9.0
minÂ
Phosphorous acid (as PO**-)% 2.0 max 0.5 maxÂ
Phosphoric acid (asPO**- )% 0.8 max 0.5
maxÂ
Chloride (as
Cl-)%Â Â Â Â Â Â Â Â Â 0.*1
max 0.*1 maxÂ
pH (1%Â
solution)Â Â Â Â Â Â Â Â Â Â Â Â
2 max 2 maxÂ
Density (*0
C)g/cm3Â Â Â Â Â Â Â Â Â
1.*0Â -Â
Fe ion
ppm              Â
*0 max *0 maxÂ
Colour APHA
(Hazen)Â Â Â Â Â Â Â Â Â *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, ***** 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 ***0mg/L is preferred as scale
inhibitor, ****0mg/L as corrosion inhibitor, and ********0mg/L as
detergent. Usually, HEDP is used together with polycarboxylic
acid.
Package and Storage of HEDP:
HEDP liquid: Normally In **0kg net Plastic Drum, IBC drum can also
be used as required HEDP solid: *5kg inner liner polyethylene (PE)
bag, outer plastic woven bag, or confirmed by clients.
Storage for ten months in room shady and dry place.
Safety Protection of HEDP:
Acidity, Avoid contact with eye and skin, once contacted, flush
with water.
| Pays: | China |
| N ° de modèle: | CAS No. 2809-21-4 |
| Prix FOB: | Obtenir le dernier prix |
| Localité: | China |
| Prix de commande minimale: | - |
| Commande minimale: | 1 Ton |
| Packaging Detail: | - |
| Heure de livraison: | - |
| Capacité de Fournir: | 20000 Ton per Year |
| Payment Type: | T/T, L/C, D/P |
| Groupe de produits : | antiscale,corrosion inhibitor,chelant |
