Customization: | Available |
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CAS No.: | 2809-21-4 |
Formula: | C2h8o7p2 |
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Identification
Molecular Formula:C2H8O7P2
Molecular Weight :206.02
EINECS Number:220-552-8
CAS Number:2809-21-4
Properties
Melting point :198~199ºC
Boiling point:578.8±60.0 °C(Predicted)
Density:1.45 (60% aq.)
Index | HEDP 60% | HEDP 90% |
Appearance | Clear, Colorless to pale yellow aqueous solution | White crystal powder |
Active content (HEDP) by wt % | 58.0-62.0 | 90.0 min |
Active content (HEDP·H2O) by wt % | - | 98.0 min |
Phos phorous acid (as PO3 3-) by wt % | 2.0 max | 0.8 max |
Phos phoric acid (as PO4 3-) by wt % | 0.8 max | 0.5 max |
Chloride (as Cl-) by wt % | 0.02 max | 0.01 max |
pH (1% water solution) | 2.0 max | 2.0 max |
Density (20ºC) g/cm3 | 1.40 min | - |
Fe by mg/L | 20.0 max | 10.0 max |
Ca sequestration by mg CaCO3/g | 500.0 min | - |
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.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
Package:25kg/drum,200kg/drum,1000kg/IBC drum
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