Water Treatment HEDP (also named Hydroxyethylidene Diphosphonic Acid, or 1-Hydroxyethylidene-1, 1-diphosphonic acid) is a kind of widely used Water Treatment.
| Items of Analysis |
Standard |
Analysis Result |
| Appearance |
Clear, water-white to pale yellow solution |
Clear, water-white to pale yellow solution |
| Total Active Acid,% |
58.0-62.0 |
60.05% |
| Phosphorous Acid (as PO33-), % |
2.0 Maximum |
1.35% |
| Phosphoric Acid (as PO43-), % |
0.8 Maximum |
0.68% |
| Chloride (as Cl-), % |
1.0 Maximum |
<1.0% |
| Specific gravity (at 20℃) |
1.41-1.46 |
1.436 |
| pH, (1% solution 25℃) |
1.0-2.0 |
1.75 |
| Ca2+ Sequestration, (as CaCO3 mg/g ) |
450 Minimum |
520mg/g |
HEDP/Hydroxyethylidene Diphosphonic Acid is a kind of Water Treatment. Richest Group is a Leading Chemical Supplier/Manufacturer of Water Treatment for 10 years.
We supply high quality Water Treatment (HEDP/Sodium Chlorite/TCCA/ATMP/PBTC/PAC, etc) in best price.
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HEDP/Hydroxyethylidene Diphosphonic Acid Application:
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.
In light woven industry, HEDP is used as detergent for metal and nonmetal.
In dyeing industry, HEDP/Hydroxyethylidene Diphosphonic Acid is used as peroxide stabilizer and dye-fixing agent;
In non-cyanide electroplating, HEDP is used as chelating agent.
The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
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