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Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4)
CAS NO.3794-83-0 (4-Na), Dequest 2016 29329-71-3 (x-Na) Dequest 2016DG
Synonyms: Tetrasodium etidronate
Molecular Formula: C2H4O7P2Na4 Molecular weight: 294
Properties and Use
HEDP•Na4 is the sodium salt of HEDP,is an good scale inhibitor for calcium carbonate,it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water sys tem and swimming pool..
The solid HEDP•Na4 is white powder,soluble in water,easily deliquescence,Convenient Transport,sui table for use in winter and freezing districts. HEDP•Na4 is belong to Organic phosphate salt acid scale and corrosion inhibitor,can form stable complex with Fe, Cu and Zn ions, it can dissolve the oxides on metal surface, it has good scale and corrosion inhibition effect under 250ºC.
Specification:
| Items | Index | |
| Appearance | White powder | Colorless to yellowish transparent liquid |
| Active content (HEDP)% | 56.0 min | 20.3-21.7 |
| Active content (HEDP•Na4)% | 79.9 min | 29.0-31.0 |
| Fe3+ μg/g | 35.0 max | 20 max |
| Moisture,% | 15 max | -- |
| Density (20ºC)g/cm3 | -- | 1.26-1.36 |
| PH (1% water solution) | 11.0-12.0(1% water solution) | 10.0-12.0( stock solution ) |
Application scope and method of use:
HEDP•Na4 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•Na4 is used as detergent for metal and nonmetal. In dy eing industry, HEDP•Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplatin g, HEDP•Na4 is used as chelating agent. Daily chemicals additive.
Package and Storage:
Liquid: plastic drum,30kg or 250kg, Solid: 25kg/bag,customers' requirement. Storage for ten months in s hady room and dry place.
Safety Protection:
HEDP•Na4 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.
