Product Technical Specification:
Chemical Name : 1 Hydroxy ethylidene 1,1-diphosphonic Acid or HEDP 60% Synonyms : 1-Hydroxyethylidene-1,1- Diphosphonic Acid.
CAS No. : 2809-21-4
Molecular Weight : 206 / Molecular Formula : C2H8O7P2
Appearance : Clear / pale yellow Solution
Active Content : 60 + 2%
Specific gravity @ 25°C : 1.42 –1.46
pH (1% solution) : Less than 2
Chlorides as HCl : < 0.01 %
Phosphorous acid : < 2.5 %
Acetic acid : < 0.5 %
Iron Content (ppm) : < 20
Solubility : Soluble in water
Assay : 60.0%.
Chelation Value : 520.0