| CAS No. | 3794-83-0 | EINECE NO. | 223-267-7 |
| Molecular Formula | C2H4O7P2Na4 | Molecular Weight | 294 |
HEDP.Na4 granule is the tera sodium salt of HEDP (Tetrasodium (1-hydroxyethylidene) biphosphonate). HEDP.Na4 has excellent scale inhibition for calcium carbonate (CaCO3) and chlorine stability.
HEDP.Na4 granular form has excellent free flowing and handling properties. Very low dust content（dust-free solid）. Finds use in Household detergents, I&I cleaners, etc. Can be easily tableted. HEDP.Na4 granular form is ideal for solid grade formulations.
| Parameter | Standard |
|---|---|
| Appearance | White granule |
| Active content (HEDP), % | 57.0-63.0 |
| Active content (HEDP•Na4), % | 81.0-90.0 |
| Moisture, % | 10.0 max |
| Particle Size Distribution(＜250μm), % | 4.0 max |
| Particle Size Distribution(＞800μm), % | 5.0 max |
| Bulk(20℃), g/cm3 | 0.70-1.10 |
| PH (1% water solution) | 11.0-12.0 |
| Fe, mg/L | 20.0 max |
HEDP•Na4 is widely used as scale and corrosion inhibitor in circulating water system, medium and low pressure boiler, oil field water pipelines,Household and I&I (industrial & institutional) cleaners, detergents.
In light woven industry, HEDP.Na4 is used as detergent for metal and nonmetal.
In dyeing industry, HEDP.Na4 is used as peroxide stabilizer and dye-fixing agent;
In non-cyanide electroplating, HEDP.Na4 is used as chelating agent.
| CaCO3 inhibition | CaSO4 inhibition | Ca3(PO4)2 inhibition | BaSO4 inhibition | CaF2 inhibition |
|---|---|---|---|---|
| Excellent | Poor | Very Good | Good | Good |
| Calcium Tolerance | Iron Control | Sequestration | Steel corrosion inhibition | |
| Poor | Yes | Good | Very Good |
| HEDP.Na4 Granule | |||||
|---|---|---|---|---|---|
| 25kg Bag | 1000L IBC | ||||
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| Once contacted with eye and skin, flush with plenty of clean water. | |||||
| Hazard Information | Safety Precaution |
|---|---|
|
Not regulated |
|
| Once contacted with eye and skin, flush with plenty of clean water | |
