Tetra Sodium Of 1 Hydroxy Ethylidene Diphosphonic Acid Hedp Na4 - China

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 system and swimming pool.

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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℃.

Phosphonates Antiscalants Specification:

Items Index

Appearance White powder Colorless to yellowish transparent liquid

Active content (HEDP)% ≥ 56.0 20.3-21.7

Active content (HEDP•Na4)% ≥ 79.9 29.0-31.0

Fe3+ μg/g ≤ 35.0 20

Moisture, % ≤ 15 --

Density (20℃)g/cm3 -- 1.26-1.36

PH (1% water solution) 11.0-12.0(1%aqueous solution) 10.0-12.0( stoste)

Vcycletech DTPMPA 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 dyeing industry, HEDP•Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, 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.

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Company Contact:

• Posted By: Shanghai Vcycletech Co.,Limited

• Phone: 15800891578

• Address: No 300 Xuanhua RD, Changning District, Shanghai, Shanghai , Shanghai , China

• Email:

• Website: https://www.vcycletech.com/

• Business Description: Company Profile
  
  Vcycletech Co., Limited is a professional manufacturer and supplier of water treatment chemicals, with decades of experience in production, R&D, and application service.
  
  Our main products include antiscalants, corrosion inhibitors, chelant, dispersant, RO chemicals, biocides, coagulants and flocculants, swimming pool chemicals etc.
  
  The products are widely used in circulating water system, boiler and heating water system in fields such as steel & iron, petrochemical, power plant, pulp and paper making mill, 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.
  
  Our company successfully passed ISO9001 quality management certification and ISO14001 Environment Management Certification.
  
  Our products are available globally through agencies and distributors around the world with good reputation.
  
  Vcycletech's advantages: stable good quality, wide range water treatment chemicals offering, rapid response, timely delivery, customized products.