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72030 Sigma-Aldrich

Sodium tetrathionate dihydrate

purum p.a., ≥98.0% (T)

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Properties

Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials, Salts,
InChI Key   HAEPBEMBOAIUPN-UHFFFAOYSA-L
grade   purum p.a.
assay   ≥98.0% (T)
impurities   10.5-20.0% water (Karl Fischer)
solubility   H2O: 50 mg/mL, slightly turbid, colorless
density   2.1 g/mL at 25 °C(lit.)
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
storage temp.   2-8°C

Description

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 proteins; Reversible inactivation of enzymes

Application

Sodium tetrathionate dihydrate may be used to compose the 0.2M Tris buffer in a study.

General description

Sodium tetrathionate dihydrate is the dihydrate of sodium tetrathionate. It has been synthesized from sodium thiosulfate by iodine oxidation. Its crystals exhibit monoclinic crystal system and space group C23-C2.

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
XF6470000
Protocols & Articles
Peer-Reviewed Papers
15

References

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