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2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic acid HEDP
Chemical Name:HEDP 60% liquid
Synonyms: 1-Hydroxyethylidene-1,1-diphosphonic acid
CAS No.: 2809-21-4
Molecular Fomula:C2H8O7P2
Chemical Structure:
Molecular weight: M=206.03
EINECS No.:220-552-8
Appearance:Colorless or light yellow transparent liquid.
item |
Spec. |
Appearance |
Colorless or light yellow transparent liquid |
Active content(HEDP)% |
58.0-62.0 |
Phosphorous acid(as PO33-)% |
2.0max |
Phosphoric acid(asPO43-)% |
0.8max |
Chloride(as Cl-)% |
0.01max |
pH(1% solution) |
2max |
Density(20℃)g/cm3 |
1.40 |
Fe(iron)ppm |
10max |
Colour APHA(Hazen) |
40max |
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