SODIUM THIOSULPHATE CRYSTALS  (Na2S2O3.5H2O)
M.W. : 248.19 CAS No. 10102-17-7
SODIUM HYPOSULPHATE PENTANYDRATE ,HYPO

SPECIFICATION

Physical Appearance

 White Crystals.

Appearance of Solution

A 20% solution in distilled water should be clear and colourless

Assay as Na2S2O3.5H2O

 97.0% Min. W/W.
pH of 10% Solution
 6.5 to 8.5 at Room Temp.
Sulphide as Na2S
  0.002% Max.
Sulphate as So4
  0.1 % Max
Insolubels mater as Ca, Mg and NH4OH
  0.4 % Max.
Iron as Fe
  0.005 % Max.
Heavy Metals as Pb
 0.005% Max.
Packing
25 Kg / 50Kg / 50Lb

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 


copyright © 2003-2009