HEDP.Na4 is widely used in circulating cool water system, medium and low-pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.
Water Treatment
Oil and Gas Industry
Textile Industry
Chemical Manufacturing
Industrial Cleaning
Metal Surface Treatment
Construction Industry
Agriculture
| Items | Index | ||
| Active content (HEDP)% | ≥ 60.0 % | — | 20.3-21.7 |
| Active content (HEDP.Na4) % | ≥ 85.0 | ≥ 88.0 | 29.0-31.0 |
| Fe (mg/L) | ≤ 35.0 | ≤ 35.0 | ≤ 20.0 |
| Moisture，% | ≤ 9.0 | ≤ 7.0 | — |
| Density (20℃) g/cm3 | — | — | 1.26-1.36 |
| pH (1% water solution) | 11.0-12.0 | 11.0-12.0 | 10.0-12.0 |
| Phosphorous Acid % | ≤ 1.0 | ||
| Color APHA | ≤ 150.0 | ||
