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|Classification::||Chemical Auxiliary Agent||CAS No.::||CAS 3794-83-0 (4-Na)|
|Applicant::||Plastic Auxiliary Agents, Textile Auxiliary Agents, Water Treatment Chemicals||MW::||294|
CAS 3794-83-0 Organic Phosphonates,
294 Organic Phosphonates,
CAS 3794-83-0 Tetrasodium Etidronate
Chemicals name:Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4)
Other name:Tetrasodium etidronate
CAS NO.3794-83-0 (4-Na), Dequest 2016
29329-71-3 (x-Na) Dequest 2016DG
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 250℃.
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.
HEDP•Na4 Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.
|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|
|PH (1% water solution)||11.0-12.0(1% water solution)||10.0-12.0( stock solution )|
Contact Person: Ms. Tian Feng Qin