HEDP 60% liquid & 90% powder CAS No.: 2809-21-4
| TJNumber | TNJ-WTO98255 |
| Commodity name | 1-Hydroxyethylidene-1,1-diphosphonic acid |
| Alias | HEDP 60% 90% |
| CAS Nr. | 2809-21-4 |
| Molecular Formula | C2H8O7P2 |
| Formula Weight | 201.999 g/mol |
| Physical State | White fine powder or colorless liquid |
| Function | Water treatment |
| Manufacturer/Supplier | Hefei TNJ Chemical Industry Co.,Ltd. |
| Factory Location | Hefei, Baiyin |
| Price Range | $0-20/kg FOB China |
| Annual Output | Bulk volume for wholesales |
| Specification | Please refer to TDS or COA |
| MSDS | MSDS Download |
| TDS | TDS Download |
| Purchase MOQ | As per your demand to buy any quantity |
| Sales Email | sales@chemicalcas.com |
HEDP 60% liquid & 90% powder CAS No.: 2809-21-4 is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
| items | index | |
| Appearance | Colorless or light yellow transparent liquid | White crystal powder |
| Active content (HEDP)% | 58.0-62.0 | 89.0 min |
| Phosphorous acid (as PO3 3-) % | 2.0 max | 0.5 max |
| Phosphoric acid (asPO4 3- )% | 0.8 max | 0.5 max |
| Chloride (as Cl - )% | 0.01 max | 0.01 max |
| pH (1 solution) | 2 max | 2 max |
| Density (20)g/cm 3 | 1.40 | - |
| Fe ion ppm | 10 max | 20 max |
| Colour APHA (Hazen) | 40 max | - |
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