Chemical Name: HEDP
CAS No.: 2809-21-4
Molecular Fomula: C2H8O7P2
Molecular Weight: 206.03
Appearance: White crystal powder
Purity: 90%
HEDP CAS 2809-21-4
Description
HEDP Quick Details
Chemical Name: HEDP/1-Hydroxyethylidene-1,1-diphosphonic acid
CAS No.: 2809-21-4
Molecular Formula: C2H8O7P2
Chemical Structure:
Molecular weight: 206.03
Appearance: White crystal
Typical Properties
| Item | Hedp |
| Appearance | White 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 |
HEDP 90% powder Application
1. HEDP is used as scale and corrosion inhibition in circulating cool water systems, oil fields, and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.
2. In the light woven industry, HEDP is used as a detergent for metal and nonmetal. In the dyeing industry, HEDP is used as a peroxide stabilizer and dye-fixing agent;
3. In non-cyanide electroplating, HEDP is used as a chelating agent. The dosage of 1-10mg/L is preferred as a scale inhibitor, 10-50mg/L as a corrosion inhibitor, and 1000-2000mg/L as a detergent.
4. Usually, HEDP is used together with polycarboxylic acid.
Packaging and Storage
Packaging: 25 kg/ bag. Compound cowhide paper bag, lined.