Products

- Synonyms: Antichlor
- Na2S2O3·5H2O
- M = 248,18 g/mol
- CAS [10102-17-7]
- EINECS-No.: 231-867-5
- Solub. in water: (20 ºC): 680 g/l
- Melting point: 48,5 ºC
- LD 50 (oral, rat): > 8000 mg/kg
- Tariff number: 2832 30 00 00
- Applications: analytical chemistry, titrant in volumetric analysis (iodometric analyses), photography, laboratory reagent, for determination of: cobalt, hydrocyanic acid, quinine.

SPECIFICATIONS
assay (iodometric): 99,5 - 101 %
identity: passes test
appearance of solution: passes test
insoluble in water: max. 0,005 %
pH (5 %, H2O): 6,0 - 7,5
chlorides (Cl): max. 0,008 %
sulfates and sulfites (as SO4): max. 0,1 %
sulfides (S): passes test
total nitrogen (as N): max. 0,002 %
calcium (Ca): max. 0,002 %
copper (Cu): max. 0,0005 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 0,0005 %
lead (Pb): max. 0,0005 %
magnesium (Mg): max. 0,001 %
potassium (K): max. 0,001 %