HEDP

CBNumber： CB4719658
English name： HEDP
MF： C2H8O7P2
MW： 206.03
CAS： 2809-21-4

Apprance	Colorless to light yellow transparent liquid		white crystalline powder
Active ingredient (calculated as HEDP), %	≥50.0	≥60.0	≥90.0
Phosphorous acid content,%	≤2.0	≤2.0	≤0.8
Phosphoric acid content,%	≤0.8	≤0.6	≤0.5
Chloride (as Cl) content, ppm	≤200	≤200	≤100
Calcium chelation value, mgCaCO3/g	≥450	≥500	---
PH value (1% aqueous solution)	1.5～2.0	≤2.0	≤2.0
Density(20℃),g/cm3	≥1.360	≥1.440	---
Iron (calculated as Fe) content, ppm	≤20.0	≤20.0	≤10.0
Chroma, Hazen	≤50	≤50	---
Active ingredient (calculated as HEDP·H2O), %	---	---	≥98.0