Chemical Name: Sodium salt of 1-Hydroxyethylene -1, 1,-diphosphonic acid
Abbreviation: HEDP.Na4 CAS Number: 3794-83-0
Molecular Formula: C2H4O7P2Na4
Molecular Weight: 294
Application Notes: The sodium salt of HEDP is noted for its excellent CaCO3 scale inhibition and chlorine stability is based on hydroxyl ethylidene (1, 1-diphosphonic acid) and is approved for applications in which boiler steam comes in contact with food.
Recommended Uses: Noted for its excellent CaCO3 scale inhibition and good chlorine stability in water treatment. Some recommended uses are for cooling water treatment, boiler treatment, I & I Cleaners, swimming pool, stain prevention, metal ion control.
Specification:
|
Appearance: |
Water white to pale yellow liquid |
|
Active Acid (%) |
20.3 - 21.7 |
|
Active Salt (%) |
29.0 - 31.0 |
|
pH (as is) @ 25°C |
10.0 - 12.0 |
|
Phosphorous acid as PO33- (%) |
1.5 max |
|
Iron, as Fe (ppm) |
20.0 max |
|
Specific Gravity at 20/20°C |
1.310 min |