SODIUM THIO SULPHATE (Anhydrous)

REF.NO: 60-10-084-00

A

FORMULA  : Na2S2O3

F. Wt:158.11

B

                                                SPECIFICATIONS

1

Appearance

Colour less crystals

2

Assay  Sodium thiosulphate content as Na2S2O3

Min :97%

3

pH of 10% aqueous solution

6.5-8.5

4

Sulphides as Na2S

Max :0.002%

5

Insoluble matter& matter precipitated as oxalate, phosphates & hydroxides

Max :0.4%

6

Heavy metals as lead

Max: 0.005%

7

Iron as Fe

Max :0.005%

8

Practical test

Passes the test

C

Quantity of sample required for test

250gms

D

Mode of packing

To be packed in PE bag and to be kept in a PE container with a PE insert and PE screw cap.