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home products Sodium Tungstate Lr

Sodium Tungstate Lr

Product Details:

Brand TRIFINE
Place of Origin Delhi India
Keywords Catalysts, Sodium Tungstate Lr, TRIFINE, TRIFINE INDUSTRIES, India
Category Chemicals > Catalysts & Chemical Auxiliary Agents >Catalysts
Payment Terms
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Detailed Product Description


SODIUM TUNGSTATE dihydrate
Mol. Formula : Na2WO4. 2H2O 
Mol. Weight : 329.86
CAS NUMBER : 10213-10-2
 
Requirements :
ASSAY : 99 - 101.0 %
 
Maximum Allowance :

INSOLUBLE MATTER  
- 0.01 %

TITRABLE FREE BASE  
- 0.02 Meq/g

CHLORIDE ( Cl )  
- 0.005 %

MOLYBDENUM ( Mo )  
- 0.001 %

NITROGEN COMPOUNDS ( as N )  
- 0.001%

SULPHATE ( SO4 )  
- 0.01 %

ARSENIC (As)  
- 5 ppm

HEAVY METALS & IRON (as Pb)  
- 0.001 %



SODIUM TUNGSTATE dihydrate A.R.
Mol. Formula : Na2WO4. 2H2O 
Mol. Weight: 329.86
 
Description:
Colorless Crystals or a White Crystalline powder.
Minimum ASSAY ( After Ignition )  
- 99.0 %
Loss On Ignition at 600o  
- 10.5 to 11.5 %
 
MAXIMUM LIMITS OF IMPURITIES :
INSOLUBLE MATTER 
- 0.01 %
ACIDITY 
- 0.1 ml N%
ALKALINITY 
- 0.5 ml N%

CHLORIDE ( Cl )  
- 0.005 %

NITRATE ( NO3 )  
- 0.01 %

SULPHATE ( SO4 )  
- 0.001 %
AMMONIUM ( NH4 ) 
- 0.0005 %
ARSENIC ( As ) 
- 0.001 %
COPPER ( Cu ) 
- 0.001 %
IRON ( Fe ) 
- 0.001 %
LEAD ( Pb ) 
- 0.001 %
MOLYBDENUM ( Mo ) 
- 0.005 %


SODIUM TUNGSTATE dihydrate
Mol. Formula : Na2WO4. 2H2O 
Molecular Weight: 329.86
APPEARANCE : WHITE CRYSTALLINE
ASSAY as Na2WO4. 2H2O 
- Min 98%
pH of 2% Solution 
- 8-10
MAXIMUM LIMITS OF IMPURITIES :

CHLORIDE ( Cl )  
- 0.02 %

NITRATE ( NO3 )  
- 0.01 %

SULPHATE ( SO4 )  
- 0.03 %
SOLUBILITY IN WATER-10% solution is clear



 



Sodium Tungstate Lr

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