Substance
ID:368961
Names and Identifiers
Synonyms
Sodium tetrathionate dihydrate连四硫酸钠 二水合物
IUPAC name
disodium dihydrate (sulfonatodisulfanyl)sulfonate
IUPAC Traditional name
disodium dihydrate tetrathionate
Properties
Product Information
Linear Formula
NaO3SS2SO3Na · 2H2O
Antion Traces
thiosulfate (S2O32-): ≤500 mg/kg
Cation Traces
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Ca: ≤500 mg/kg
Co: ≤50 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Cd: ≤50 mg/kg
Zn: ≤50 mg/kg
Impurities
10.5-20.0% water (Karl Fischer)
Purity
≥98.0% (T)
Grade
purum p.a.
Physical Property
Solubility
H2O: soluble50 mg/mL, slightly turbid, colorless
Density
2.1 g/mL at 25 °C(lit.)
Safety Information
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
European Hazard Symbols
Irritant (Xi)Risk Statements
36/37/38
German water hazard class
3
GHS Signal Word
Warning
RTECS
XF6470000
GHS Precautionary statements
P261-P305+P351+P338
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
MSDS Link
Safety Statements
26-36
Storage Temperature
2-8°C
GHS Hazard statements
H315-H319-H335
Molecule Details
Other Notes
Thiosulfating agent; it reacts with thiols, e.g. cysteine to S-sulfo-thiols, used in the quantitative determination of total cysteine/cystine in proteins1; Reversible inactivation of enzymes2
Thiosulfating agent; it reacts with thiols, e.g. cysteine to S-sulfo-thiols, used in the quantitative determination of total cysteine/cystine in proteins1; Reversible inactivation of enzymes2
Molecular Spectra
No Data Available
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References
No Data Available
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