Corrosion Inhibitor HEDP 2809-21-4

Prix FOB

Obtenir le dernier prix

200 ~ 350 / Metric Ton

1 Metric Ton Minimum Order

Pays:

China

N Â° de modÃ¨le:

Prix FOB:

200 ~ 350 / Metric Ton (Negotiable) Obtenir le dernier prix

LocalitÃ©:

Weifang,China

Prix de commande minimale:

200 per Metric Ton

Commande minimale:

1 Metric Ton

Packaging Detail:

HEDP solid: 25kg/bag, customersÃ¢ï¿½ï¿½ requirement

Heure de livraison:

3-5 working days

Capacité de Fournir:

3000 Metric Ton per Month

Payment Type:

T/T, L/C, Western Union, Other

Groupe de produits :

Phosphonates Antiscalants

Contacter maintenant

Shouguang Starail Economic and Trade Co., LTD

China

Membre gratuit

Personne Ã contacter Matthew

Weifang, Shandong

Contacter maintenant

SpÃ©cification du produit

La description

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.HEDPshows excellent scale and corrosion inhibition effects under temperature 250â„ƒ.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 ofHEDP 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:

Items	Index
Appearance	Clear, Colorless to pale yellow aqueous solution	White crystal powder
Active content (HEDP)%	60.0 min	90.0 min
Active content (HEDP·H2O)%	-	98.0 min
Phosphorous acid (as PO33-)%	1.0 max	0.8 max
Phosphoric acid (as PO43- )%	0.6 max	0.5 max
Chloride (as Cl-)%	0.01 max	0.01 max
pH (1% water solution)	2.0 max	2.0 max
Density (20â„ƒ)g/cm3	1.40 min	-
Fe, mg/L	10.0 max	5.0 max
Colour APHA (Hazen)	10.0 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 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 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually,HEDP is used together with polycarboxylic acid. Package and Storage: HEDP liquid: 200L plastic drum,IBC(1000L),customers requirement.
HEDP solid: 25kg/bag,customers requirement.
Storage for twelve months in room shady and dry place.

Pays:	China
N Â° de modÃ¨le:	-
Prix FOB:	200 ~ 350 / Metric Ton (Negotiable) Obtenir le dernier prix
LocalitÃ©:	Weifang,China
Prix de commande minimale:	200 per Metric Ton
Commande minimale:	1 Metric Ton
Packaging Detail:	HEDP solid: 25kg/bag, customersÃ¢ï¿½ï¿½ requirement
Heure de livraison:	3-5 working days
Capacité de Fournir:	3000 Metric Ton per Month
Payment Type:	T/T, L/C, Western Union, Other
Groupe de produits :	Phosphonates Antiscalants