HEDP 50% 60% 98% Phosphonates Antiscalants, Corrosion Inhibitors
【Product Description】
Synonyms: HEDP; HEDP (A); HEDPA; Etidronic Acid;1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid;
CAS No: 2809-21-4
MF: C2H8O7P2
Molecular Weight: 206.02
HS Code: 2942000000
Appearance: 60%: Clear, Colorless to pale yellow aqueous solution
98%: White crystal powder
【Specification】HEDP 50% 60% 98% Phosphonates Antiscalants, Corrosion Inhibitors
| Items | Index |
| 50% Liquid | 60% Liquid |
| Appearance | clear or colorless to pale yellow aqueous solution | clear or colorless to pale yellow aqueous solution |
| Active content(HEDP)% | ≥50% | ≥60% |
| Phosphorous acid (as PO3³-)% | ≤1 | ≤1 |
| Phosphoric acid (as PO4³- )% | ≤0.6 | ≤0.6 |
| Chloride (as Cl-)% | ≤0.01 | ≤0.01 |
| pH (1% water solution) | ≤2.0 | ≤2.0 |
| Density (20℃)g/cm3 | ≥1.36 | ≥1.40 |
| Fe, mg/L | ≤10.0 | ≤10.0 |
| Colour APHA (Hazen) | ≤10.0 | ≤10.0 |
| Ca sequestration (mg CaCO3/g) | ≥450 | ≥500 |
| Appearance | White crystal powder |
| Active content (HEDP)% | 90.0 min |
| Active content (HEDP·H2O)% | 98.0 min |
| Phosphorous acid (as POR3RP3P)% | 0.5max |
| Phosphoric acid (as POR4RP3-P )% | 0.5 max |
| Chloride (as Cl-) ppm | 100.0max |
| pH (1% solution) | 2.0 max |
| Density (20℃)g/cm3 | - |
| Fe,ppm | 5.0 max |
| Colour APHA (Hazen) | - |
| Ca sequestration (mg CaCO3/g) | - |
【Application】HEDP 50% 60% 98% Phosphonates Antiscalants, Corrosion Inhibitors
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure
boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.
【Packing】HEDP 50% 60% 98% Phosphonates Antiscalants, Corrosion Inhibitors
HEDP liquid: 200L plastic drum, IBC (1000L), customers’ requirement.
HEDP solid: 25kg/ paper bag or based on customers’ requirement.
Product Tags:
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HEDP Hydroxyethylidene Diphosphonic Acid , Phosphonate Corrosion Inhibitor Images
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