Appearance

Clear, Colorless to pale yellow aqueous solution

Active Content(as HEDP)

50.0 - 60.0 %

Phosphorous acid (as PO₃^3- )

2.0% max

Phosphoric acid (as PO₄^3- )

0.8% max

pH (1% Water Solution)

2.0 max

Density (20) g/cm³

1.34 - 1.40

Iron

10ppm max

Chlorides (as CL^-)

100 ppm max

Color (APHA)

30 max.

Ca sequestration mg CaCO₃/g

480 min

Acetic Acid

1.0% max

 

Applications:

HEDP(S)is a type of cathodic corrosion inhibitor. Compared with inorganic phosphates, it can be compounded with sodium molybdate, silicate, zinc salt and co-polymer mainly as scale corrosion inhibitor in treatment of cyclic cooling water, oil field flash and boiler water.It is mainly used as a Scale and Corrosion Inhibitor. It's also used as chelating (Sequestrating), deflocculating agent in Textile Dyeing, Detergents etc.

 

Usage:

HEDP is usually used together with polycarboxylic acid, to make up whole-organic-alkali or low-phosphor zinc-based agent of water treatment to be used in all kinds of cyclic cooling water systems different from water quality.

The dose is generally 2~10mg/L while HEDP is used alone.The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent.

Packing and Storage:

Normally In 30kg or 250kg net Plastic Drum, IBC's can also be used as required.Stored in cool and ventilated room in one year.

Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.