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Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid

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  Post Date: Aug 09,2016
  Expiry Date: Feb 05,2017
  Detailed Description: Cas No. :3794-83-0

[CAS] 3794-83-0(4-Na),29329-71-3(x-Na) Dequest 2016/ Dequest 2016DG

Molecular Formula : C2H4O7P2Na4 Molecular Weight:294

1, Properties and usage:

HEDP·Na4 is the sodium of HEDP , HEDP·Na4 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.

The solid HEDP·Na4 is white powder , soluble in water ,easily deliquescence, suitable for use in winter and freezing districts. It is a kind of organophosphonic 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℃ .

HEDP·Na4 is widely used in circulating cool water system ,medium and low pressure boiler , oil field water pipelines as scale and corrosion inhibitor in fields such as electric power ,chemical industry , metallurgy , 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 .

2, Specification:

I tems index
Appearance Colorless or light yellow transparent liquid White crystal powder
Active content (HEDP)% 20.3-21.7 ≥56.0
Active content (HEDP·Na4)% 29.0-31.0 ≥79.9
Phosphorous acid (as PO43-)% 18.4-20.4 52.0-54.0
Ph (1% water solution ) 11.0-12.0 11.0-12.0
Density(20℃)g/ cm3 1.26-1.36 —
Fe ppm ≤ 25 35.0
Dry weght loss % ≤ — 15

4, Package and Storage

For liquid:Normally In 250kg or 30kg net Plastic Drum , also be used as required .

For silid: inner liner polyethylene(PE) bag,outer plastic woven bag,or confirmed by clients . Storage for ten months in room shady and dry place.

5, Safety Protection :

Weak acidity , Avoid contact with eye and skin , once contacted, flush with water .

  CAS Registry Number:

3794-83-0
  Synonyms: ;(1-hydroxyethylidene)bis-phosphonicacitetrasodiumsalt ;(1-hydroxyethylidene)-diphosphonicacitetrasodiumsalt ;1-Hydroxyethylidene-1,1-diphosphonicacid,tetrasodiumsalt ;ethane-1-hydroxy-1,1-diphosphonicacid,tetrasodiumsalt ;Phosphonicacid,(1-hydroxyethylidene)bis-,tetrasodiumsalt ;Tetrasodium1-hydroxyethylidene-1,1-diphosphonate ;tetrasodiumetidronate ;Tetra sodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; ;turpinal4nl; 1-Hydroxyethylidene Diphosphonic Acid Tetrasodium Salt;Na4HEDP;Sodium HEDP;Hydroxyethylene Diphosphonic Acid Tetrasodium Salt;HEDPoNa4; ;tetrasodium (1-hydroxyethane-1,1-diyl)bis(phosphonate);HEDP•Na4;
  Molecular Formula: C2H8Na4O7P2
  Molecular Weight: 297.9851
  Molecular Structure: 3794-83-0 (1-Hydroxyethylidene)bis-phosphonic acid tetrasodium salt

  Company: Qingdao Kerun Chemical Co., Ltd.     [ China ]        
  Contact: Mr.Guo
  Tel: +86-532-87526098
  Fax: +86-532-87526098
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