SODIUM THIOSULPHATE PENTAHYDRATE AR/ACS

Article No. Grade Purity CAS No. Molecular Formula Molecular Weight H.S. Code Shelf Life
SC1838 AR/ACS 99.50% 10102-17-7 Na2S2O3.5H2O 248.17 2832.3010 60 Months

Packings

500 g,5000 g,25 Kg,50 Kg

Physical Properties

Physical state at 20 °C Solid
Colour Colorless crystals
Odour Odorless
pH value 6 - 8.5
Melting point/ Freezing point [°C] 48°C
Boiling point [°C] > 100°C
Density [g/cm3] 1.75
Solubility in water [% weight] 79g/100 ml water @ 40C

Specifications

Appearance Large, colourless crystals or coarse crystalline powder
Assay (iodometric) 99.5 - 101.0%
Insoluble matter (10% in water) Max. 0.005%
pH (5% solution in water; 25°C) 6.0 - 8.4
Nitrogen compounds (as N) Max. 0.002%
Chloride (Cl) Max. 0.02%
Heavy metal (as Pb) Max. 0.001%
Sulphate and Sulphite (as SO4) Max. 0.1%
Sulphide (S) Passes test

Safety Information and Hazard Symbols

Symbol
Signal Word
UN No.
IMCO Class No.
Packing Group
Hazardous Statement
Precaution Statement
Risk Statement
Safety Statement
Revision Date : 11-Mar-2016