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HEDP1-hydroxyethylidene-1, 1-diphosphonic Acid
 HEDP1-hydroxyethylidene-1, 1-diphosphonic Acid |
Product Description
HEDP 1-hydroxyethylidene-1, 1-diphosphonic acid [2809-21-4]
Specifations:
Appearance clear, colorless to pale yellow aqueous solution
Active content(as HEDP) 50.0 - 60.0 %
Phosphorous acid (as po33- ) 2.0% max
Phosphoric acid (as po43- ) 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 dying, 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.
| Productivity: | 1000, 000T/year |
|---|---|
| Origin: | Zaozhuang City Hetai Water Treatment Co., ltd |
| Packing: | 30kg or 250kg net Plastic Drum |
| Use: | Protection |
| Company: | Zaozhuang City Hetai Water Treatment Co., Ltd. |
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