Product name: Etidronic acid; Hydroxyethylidene Diphosphonic acid; HEDP
Assay: 90% or 60%
Appearance: Withe crystal powder
Packaging: 25KG/ bag
Sample: available
Capacity: 5000 Ton/Tons per Month
Application: Scale and corrosion inhibition, detergent, peroxide stabilizer and dye-fixing agent, chelating agent
Chemical Name:HEDP
Synonyms: 1-Hydroxyethylidene-1,1-diphosphonic acid
CAS No.: 2809-21-4
Molecular Fomula:C2H8O7P2
Chemical Structure:
Molecular weight: M=206.03
EINECS No.:220-552-8
Appearance:White crystal
| Item | HEDP |
| Appearance | Withe crystal powder |
| Active content(HEDP)% | 90.0min |
| Active content(HEDP.H2O)% | 98.0min |
| Chloride(as Cl-)% | 50max |
| PH (1% solution) | 2.0max |
| Fe,mg/L | 5.0max |
| Phosphoric acid(as PO3³‾) | 0.8max |
| Phosphoric acid(as PO4³‾) | 0.5max |
1.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..
2.In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent;
3.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.
4.Usually, HEDP is used together with polycarboxylic acid.
Packaging:25KG/ bag. Compound cowhide paper bag, lined.
