Tiosiarczan sodowy, pentahydrat ExpertQ® do analizy ACS,ISO, Reag. Ph Eur – SCHARLAU
Additional information
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POBIERZ KARTĘ PRODUKTU
POBIERZ KARTĘ POZIOMU JAKOŚCI
POBIERZ KARTĘ CHARAKTERYSTYKI PRODUKTU
PRODUCENT: SCHARLAB
Sodium thiosulfate pentahydrate, ExpertQ
– 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 %
