Sodium Metabisulfite

• Post Date:

  Mar 12,2015

• Expiry Date:

  Mar 11,2016

• Detailed Description:

  Cas No. :CAS No.: 7681-57-4 Quantity: 2000Metric Tons
  Specs:Na2S2O5 97%
  Price:330-380 USD Metric Tons
  Payment Method: T/T or LC
  Sodium Metabisulfite:
  
  Appearance: White or light yellow crystalline power;
  Molecular Formula: Na2S2O5
  CAS No.: 7681-57-4
  Place of Origin: Hebei, China(Mainland)
  
  Spec:
  
  Item Standard
  
  Content 97.0% Min
  
  SO2 65.0% Min
  
  Na2S2O4 2.0% Max
  
  Insolubles In Water 0.05% Max
  
  Particle Size 85% (Mesh 200)
  
  pH 4.5 -5.5
  
  Fe 5ppm max
  
  Heavy Metal 10 ppm max
  
  
  As 1 ppm max
  
  Main Uses:
  
  Textile-printing and dyeing: As Mordant of printing and dyeing; Dechlorinate textile after bleaching; As agent for textile's boiling-off; As Sulphonated agent and reducer.
  Pharmacy: Used to manufacture colorform\solasulfone\benzaldehyde etc; As Sulphonated agent and reducer.
  Tanning: Used for treatment of leather to soften the surface and make the leather waterproof\more tough\antiwear.
  Sensitization industry: Is served as the developing agent reductant and the protection of fixing bath dose and so on.
  Food industry: It is used as bleacher\antiseptic\leavening agent\antioxidant\color fixative\preservative etc.
  Waste Water Treatment: Used as an oxygen scavenger to eliminate the dissolved oxygen in waste water Mining: It is used for ore floatation.
  
  Sodium Metabisulfite is an in many beacher in many industries. It is used in beaching mechanical paper pulp, cotton, wool and kaolin clay.
  
  Packing: 25kgs/1MT/1.25MT per PP and PE bag

• CAS Registry Number:

  CAS No.: 7681-57-4

• Synonyms:

  ;Sodium pyrosulfite;disodium disulphite;Sodium metabisulphite;Sodium disulphite;Sodium pyrosulphite;SODIUM DISULFITE;disodium oxidosulfanesulfonate oxide;Sodium Metabi;Metabisulfite Sodium;Sodium Metabisulfite (Food Grade);

• Molecular Formula:

  Na₂S₂O₅

• Molecular Weight:

  190.1065

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R31:;
  R41:;
  

• Safety Description:

  S26:;
  S39:;
  S46:;
  

• Company:

  Tianjin Xibeier International Co.,Ltd     [ China ]        

• Contact:

  De Xi,Zhao

• Tel:

  022-24214095

• Fax:

  022-24214097

• Email:

  cntjxibeier@163.com