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1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

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Product Description

PRODUCT

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

CAS #

2809-21-4

SYNONYM

HEDP; Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-; Phosphonic acid, (1-hydroxyethylidene)bis-

FORMULA

C2H8O7P2

PRODUCT TYPE

Organic

Typical Product Specifications

APPEARANCE

Colorless or light yellow transparent liquid

ACTIVE CONTENT

58.0 - 62.0%

PHOSPHOROUS ACID

<= 2.0%

PHOSPHORIC ACID

<= 0.8%

CHLORIDE

<= 0.01%

PH

<= 2 (1% solution)

DENSITY @ 20C

1.40 g/cm^3

FE ION

<= 10 ppm

COLOR (APHA)

<= 40 HU

MOLECULAR WEIGHT

206.03

NOTES

HEDP is primarily used in scale and corrosion inhibition in a variety of industries. It can also be used as a chelating agent, in detergents for metals and nonmetals, and in dye-fixing agents.

Use: CHELATING

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