1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Tetrasodium Salt
Product Description
| Product | 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Tetrasodium Salt |
| CAS | 3794-83-0 |
| Formula | C2H4O7P2Na4 |
| Synonym | HEDP•Na4, Phosphonic acid, P,P'-(1-hydroxyethylidene)bis-, sodium salt (1:4), Tetrasodium(1-hydroxyethylidene)bisphosphonate |
Typical Product Specifications
| Appearance | Colorless to light yellow transparent liquid |
| Active Component (HEDP Na4) | 29.0 - 31.0% |
| Phosphoric Acid | 18.4 - 20.4% |
| Fe | <= 20 ppm |
| Density @ 20C | 1.26 - 1.36 g/cm^3 |
| pH | 10.0 - 12.0 (as is) |
| Active Component (HEDP) | 20.3 - 21.7% |
| Melting Point | -5 c |
| Molecular weight | 293.96 |
| Specific gravity | 1.30-1.35 |
| Notes | HEDP Na4 has a broad range of applications and is useful in very cold conditions. It can be used in oxide dissolving on metal surfaces and has good scale and corrosion inhibition effects under 250C.
Use: CHELATING, EMULSION STABILISING, VISCOSITY CONTROLLING |
| Class | Corrosion Inhibitors, Water Treatment Chemicals, Scale Inhibitors |
| Function | Anti-Corrosive, Scale Inhibitor, Metal deactivator |
| Industry | Water Treatment, Anti-Corrosives |
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