1-ヒドロキシエチリデン-1,1-ジホスホン（HEDP）CAS NO：2809-21-4

Appearance

Clear, Colorless to pale yellow aqueous solution

White crystal powder

Active content (HEDP)%

60.0 min

90.0 min

Active content (HEDP·H2O)%

58-62

98.0 min

Phosphorous acid (as PO33-)%

1.0 max

0.8 max

Phosphoric acid (as PO43- )%

0.6 max

0.5 max

Chloride (as Cl-)%

0.01 max

0.01 max

pH (1% water solution)

2.0 max

2.0 max

Density (20℃)g/cm3

1.40 min

-

Fe, mg/L

10.0 max

5.0 max

Colour APHA (Hazen)

10.0 max

-

Ca sequestration (mg CaCO3/g)

500.0 min