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Disodium salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid(HEDP•Na2)
CAS NO. 7414-83-7 Dequest 2016BD
Molecular Formula: C2H6O7P2Na2 Molecular weight: 250
Properties:
HEDP•Na2 is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials, it has good scale and corrosion inhibition effects even under 250ºC, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. HEDP•Na2 can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP•Na2 has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better.Specification:
| items | index | |
| Appearance | Colorless to yellowish transparent liquid | White powder |
| Active content(HEDP)% | 16.5min | 74.0-79.0 |
| Active content (HEDP•Na2)% | 20.0min | 89.8min |
| density (20ºC)g/cm3 | 1.12-1.22 | -- |
| Fe3+ μg/g | -- | 35max |
| Phosphorous acid (asPO33-)% | -- | 2max |
| Moisture,% | -- | 3-6 |
| PH (1% water solution) | 4.0-6.0 | 4.0-6.0 |
Application scope and method of use:
HEDP•Na2 is widely used in circulating cool water system, medium and low pressure boiler, oil field wat er pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurg y, fertilizer, etc.. In light woven industry, HEDP•Na2 is used as detergent for metal and nonmetal. In dy eing industry, The dyes the industry fixing agent In non-cyanide electroplating used as chelating agent.
Package and Storage:
HEDP•Na2 plastic drum,30kg or 250kg,or confirmed by clients Storage for ten months in shady room and dry place.
Safety Protection:
HEDP•Na2 Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.
Shandong Xintai Water Treatment Technology Co., Ltd. is the professional water treatment chemicals manufacturer in China, the company sites at the east of Zao Zhuang City, Shan Dong Province, China where has comfortable climate, beautiful scenery and convinent transportation.
The product families include organic phosphonic series, organic phosphate salt, corrosion inhibitors, chelating agents, dispersants, RO membrane chemicals and etc., covering wide ranges from single to complex agents. The products are widely used in circulating water system, boiler and heating water system in fields such as steel & iron, petrochemcal, power plant and medical industries etc. To satisfy the need of different fields, some solid products such as organophosphoric acids and their sodium salts are developed recently in our factory, including high pure grade and ordinary grade. Some polymer solid products have also been developed. To cooperate with our clients for water quality analysis and treatment process planning, we have set up a synthesis and application laboratory, several research projects are done in this laboratory.
Our Sales characteristics: Pay attention to manufacture of water treatment chemicals, preferably as a workshop of water treatment field.
Ideal clients: Intermediary buyers of water treatment chemicals, not terminal business. Free supply services of water quality analysis, prescription screening, operation planning draft and spot supervision. Supply new product development and trial-produce, make trial product on client order.
Obtain ISO9001, 14001, 45001 system certificate, and make sure quality stable.
It owns independent import and export rights, and products are sold all over the world, and highly approved by clients.
