| Abbreviation: | HEDP.Na4 Powder |
| Product code: | NST1111 |
| Supplier: | NASTA Trading GmbH |
| Molecular Formula: | C2H4O7P2Na4 |
| Commercial Form: | Aqueous Solution |
| MolecularWeight: | 294 |
| Chemical Name: | sodium salt of (1-hydroxy ethylidene) diphosphonic acid |
| CAS Number: | 3794-83-0 |
| EC Number: | 223-267-7 |
| Recommended Uses: | Cooling water treatment, boiler treatment, I & I Cleaners, swimming pool stain prevention, personal care products, metal ion control |
Characteristics |
Limits |
| Appearance | Water white to pale yellow liquid |
| Active Acid % | 57.0 - 62.0 |
| Active Salt % | 29.0 - 31.0 |
| pH (as is) @ 25 C: | 10.0 - 12.0 |
| Phosphorous Acid (%) | 1.5 max |
| Iron content (Fe ppm) | 20.0 max |
| Specific Gravity at 20/20°C | 1.310 min |