1-Hydroxyethylidene-1, 1-Diphosphonic acid (HEDP) [2809-21-4]
Abbreviation: HEDP Molecular weight: 206. 02
Specifications:
|
Appearance |
White crystal powder |
|
Active Content(as HEDP) |
90. 0% |
|
Active content (as HEDP? H2O) |
98. 0% |
|
Phosphorous acid (as PO33- ) |
0. 8% max |
|
Phosphoric acid (as PO43- ) |
0. 5% max |
|
pH (1% Water Solution) |
2. 0 max |
|
Chlorides (as CL-) |
0. 5% max |
|
Ca sequestration mg CaCO3/g |
500 min |
Applications:
HEDP solid is crystal powder, suitable in winter and freezing districts. Because of high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.
Usage:
HEDP solid is mainly used as corrosion inhibitors in boiler and heat exchanger;
Cleaning agent in metal and non-metallic; rinse the stabilizer industry and the fixing agent, circulating water system of the scale inhibition and dispersion agent.
Packing and Storage:
Normally In 25kg woven bag inner-lined with PE bag. Stored in cool and ventilated room in one year.