1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP) By Zibo Eyuan Import & Export Co. Ltd,

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

FOB Price

Get Latest Price

500 ~ 600 USD / Metric Ton

5 Metric Ton Minimum Order

Country:

China

Model No:

FOB Price:

500 ~ 600 USD / Metric Ton (Negotiable) Get Latest Price

Place of Origin:

Price for Minimum Order:

500 per Metric Ton

Minimum Order Quantity:

5 Metric Ton

Packaging Detail:

250kg drums

Delivery Time:

one week

Supplying Ability:

900 Metric Ton per Month

Payment Type:

T/T, L/C

Product Group :

Product Specification

MF: C2H8O7P2
Purity (%): 58-62%
Usage: Paper Chemicals

Product Description

*-Hydroxy Ethylidene*1, *-Diphosphonic Acid (HEDP)
CAS No： ********4
Alias: *-Hydroxy Ethylidene*1, *-Diphosphonic Acid, Dequest ***0, HEDPA
Molecular formula: C₂H₈O₇P₂ Relative molecular mass: **6.*2
Structural formula:

Product Property
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 **0^oC 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 organic 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.

Index Name	Specifications
Appearance	Clear, Colorless to pale yellow aqueous solution		White powder
Active Content(as HEDP),%	8.**2.0		*9.0
*Phosphorous Acid (as PO₃^- )%**	1.0max.		0.*0
*Phosphorous Acid (as PO₄^- )%**	0.6max.		0.*0
Acetic Acid %	0.5max.		**-
Chloride(as Cl^-) , ppm	**0.0max		0.5
PH (1% solution)	2.0max		2.0
*Density(0**^oC) g/cm³	1.**1.7		*-
Iron (as Fe) , ppm	*0.0max		5.0
Ca sequestration, mg CaCO₃/g	**0.0min		**-
Identification： Qualified		Active Content: (as HEDP H₂O) %	*8.0

Specification
Application scope and 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 ***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
It is usually packed in *0kg or **0kg plastic drum, and can be also determined by users. It can be stored for ten months in shady and dry place under room condition.
Safety Protection:
This product is in acidity. Avoid contact with eye and skin. Rinse with plenty of water shortly after being bodily stained.

Country:	China
Model No:	-
FOB Price:	500 ~ 600 / Metric Ton (Negotiable) Get Latest Price
Place of Origin:	-
Price for Minimum Order:	500 per Metric Ton
Minimum Order Quantity:	5 Metric Ton
Packaging Detail:	250kg drums
Delivery Time:	one week
Supplying Ability:	900 Metric Ton per Month
Payment Type:	T/T, L/C
Product Group :	-