Sodium tetrathionate dihydrate

purum p.a.

200

≥98.0% (T)

powder or crystals

10.5-20.0% water (Karl Fischer)

4-6 (25 °C, 30.6 g/L)

H₂O: 50 mg/mL, slightly turbid, colorless

2.1 g/mL at 25 °C (lit.)

thiosulfate (S₂O₃^2-): ≤500 mg/kg

Ca: ≤500 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, K: ≤100 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg

2-8°C

O.O.[Na+].[Na+].[O-]S(=O)(=O)SSS([O-])(=O)=O

1S/2Na.H2O6S4.2H2O/c;;1-9(2,3)7-8-10(4,5)6;;/h;;(H,1,2,3)(H,4,5,6);2*1H2/q2*+1;;;/p-2

HAEPBEMBOAIUPN-UHFFFAOYSA-L