1-hydroxy ethylidene-1,1-diphosphonic acid
Oxyethylidene diphosphonic acid is a white powder with a grayish or beige tint, readily soluble in water, acids, alkalis, methanol and ethanol.
| Appearance | White crystalline powder |
| Basic substance content (HEDP) %: | 90.0 мин |
| Content of the main substance (HEDP.H2O) (%): | 98.0 мин |
| pH (1% solution) at 20°C | 2.0 макс |
| Phosphorous acid PO3 (%) | 1.0 мин |
| Phosphoric acid PO4 (%): | 0.5 макс |
| Chlorides Cl, ppm | 50.0 макс |
| Iron mg / L | 10.0 макс |
Oxyethylidene diphosphonic acid is a white powder with a grayish or beige tint, readily soluble in water, acids, alkalis, methanol and ethanol.
Synonyms and international names
OEDP ACID, OEDPA, 1-hydroxyethane-1,1-diphosphonic acid
English. spelling: 1-hydroxy ethylidene-1,1-diphosphonic acid, HEDP
Application
-
as a scale inhibitor in oil production processes;
-
in the pulp and paper industry in the process of bleaching all types of cellulose at the stage of chelation;
-
as a complexing agent in the chemical and textile industries;
-
as a scale inhibitor for hot water supply systems with an open water intake, in circulating cooling systems of industrial enterprises and thermal power plants,
-
in closed heat supply systems, in hot water supply systems, as well as as a reagent for washing scale deposits at various industrial facilities;
-
for the control of plant diseases in agriculture.
Used with this product:
- Nitrilotrimethylphosphonic acid (NTF)
- Trilon B disodium salt
- Trilon B tetrasodium salt
- Alpha olefin sodium sulfonate (AOS, AOS)
- Lauric acid
- AMPS (AA / AMPS, acrylic acid)
- Paratoluenesulfonic acid (PTSA)