Sodium tetrathionate dihydrate
CAS Number13721-29-4
FormulaNaO3SS2SO3Na · 2H2O
Mol. Weight306.27 g/mol
Sodium tetrathionate dihydrate
What is Sodium tetrathionate dihydrate?
Sodium tetrathionate dihydrate is a chemical compound with CAS number 13721-29-4 and molecular formula NaO3SS2SO3Na · 2H2O. It is used in various industrial and research applications.
Specifications
Linear Formula
NaO3SS2SO3Na · 2H2O
Molecular Weight
306.27 g/mol
Assay/Purity
≥98.0% (T)
Impurities
10.5-20.0% water (Karl Fischer)
Density
2.1 g/mL at 25 °C(lit.)
Solubility
H2O: soluble50 mg/mL, slightly turbid, colorless
Safety Information
GHS07Signal Word
Warning
Hazard Statements
H315-H319-H335
Precautionary Statements
P261-P305 + P351 + P338
Required PPE
dust mask type N95 (US), Eyeshields, Gloves
Anion Traces
thiosulfate (S2O32-): ≤500 mg/kg
Cation Traces
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
WGK Germany
3