1-Hydroxyethylidene-1, 1-diphosphonic acid

CAS NO. 2809-21-4

Other names：

1-Hydroxyethane-1, 1-diphosphonic Acid

Etidronic acid

HEDP

HEDPA

Hydroxyethylidene-1, 1-Diphosphonic Acid

1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid

1-hydroxy ethylene-1, 1-diphosphonic acid

Disodium (1-hydroxyethane-1, 1-diyl)bis[hydrogen (phosphonate)](1-hydroxyethane-1, 1-diyl)bis(phosphonate)

Nature：

Appearance: colorless to pale yellow viscous transparent liquid

Active component content: ≥50.0%

Density（20℃), g/cm3: 1.37

Phosphorous acid（to PO3-3）content: ≤2.0%

Phosphoric acid（to PO3-4）content: 1.0%

Chlorid（to Cl）content: ≤0.5%

PH（1% aqueous solution）: ≤2.0

Calcium chelating value（to CaCo3）, mg/g: ≥450

Feature：

This product has a good scale and corrosion inhibition effect, high temperature resistance, good oxidation resistance, low toxicity and other characteristics.

It mainly used in industrial circulating cooling water scale and corrosion inhibition. as this product can form stable complexes with iron, copper, aluminum, zinc and other metal ions, can be used for cleaning boilers and pipes, rust, inorganic salts dirt.

Purposes:

A scale inhibitor and corrosion inhibitor for boiler and heat exchanger, the complexing agent of the non-cyanide electroplating, metal cleaning agent in the textile industry, it can be used as a cleaning agent for metal and nonmetal, bleaching and dyeing industry in the stable agent and fixing agent.

Packaging and Storage: The product is 25KG or 250KG plastic drum, stored in a cool room, storage period is one year.