Water Treatment High Quality HEDP Cas 2809-21-4
Basic Info
Model No.: HEDP
Product Description
Water Treatment High Quality HEDP 2809-21-4
Properties of HEDP: HEDP is an organic phosphonic acid corrosion inhibitor, can dissociate into five positive and negative ions in the water, can chelate Divalent metal ions in the water, and iron, copper, aluminum, zinc and other metal ions forming a stable complex, has a good scale effect.
Specification of HEDP Standard HG/T3537-1999
| Appearance | Clear, Colorless to pale yellow aqueous solution | Clear, Colorless to pale yellow aqueous solution | White crystal powder |
| Active content (HEDP)%≥ | 50.0 | 60.0 | 90.0 |
| Phosphorous acid (as PO33-)%)≤ | 2.0 | 2.0 | 0.80 |
| Phosphoric acid (asPO43- )% ≤ | 0.8 | 0.8 | 0.50 |
| Chloride (as Cl-)% ≤ | 0.01 | 0.01 | 0.10 |
| pH (1% solution) ≤ | 2.0 | 2.0 | 2.0 |
| Density (20°C)g/cm3 ≥ | 1.34 | 1.40 | -- |
| Chelating valuemg/g | 450 | 500 |
|
| Fe2+,mg/L≤ | 10.0 | 10.0 | 5.0 |
| Active content(HEDP·H2O)% ≤ | -- | -- | 98.0 |
Usage of HEDP:
1. HEDP is used as scale and corrosion inhibition in circulating cool water system,
2. oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc..
3. In light woven industry, HEDP is used as detergent for metal and nonmetal.
4. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent;
Product Categories : Water Treatment Chemicals