Product Name:Hydroxyethylidene diphosphonic acid HEDPA
Type: Water Treatment Series
Chinese Name:羟基乙叉二膦酸 HEDPA

Summary:

HEDPA is Hydroxyethylidene diphosphonic acid which is water treatment agent of organic polyphosphine acid with good chemical stability and uneasy hydrolisis. It prevents forming scale by good chelated and low limit inhibitory which has good inhibition to carbon steel and good intermiscibility with each kind of water treatment agent, composing many kinds of formulas for water treatment. It is widely used in recirculated cooling waters of metallurgy, chemical industry, electricity and scale treatment for boiler water and oilfield flooding, also as metal cleansing agent in galvanization industry.

Property:

Appearance:Light yellow thick liquid 

Active component(HEDPA):≥50%

Phosphorous acid(PO3): ≤3%

 Phosphoric acid(PO4): ≤0.8%

PH value(1% water solution): <2

 Density(20℃ ): 1.34～ 1.48g/ml

Chloride (Cl) : ≤1.5%

Dosage and usage:

 The density is 4~ 10ppm as scale inhibitor in circulating cooling water, the density is 10~ 20ppm as corrosion inhibitor according to water quality and operating condition.

Safety protection:

Acid liquid, pay attention to protection when operating, flushing with water once contacts skin.

Package and storage:

 Polyethylene plastic and flat package, net weight is 20 kg/barrel. Inner polyethylene plastic, net weight is 250 kg/barrel.