Sodium tetrathionate

Sodium tetrathionate dihydrate
Names
IUPAC name
Sodium (sulfonatodisulfanyl)sulfonate dihydrate
Identifiers
13721-29-4
3D model (Jmol) Interactive image
ECHA InfoCard 100.208.917
PubChem 203055
Properties
Na2S4O6
Molar mass 306.2665 g/mol (dihydrate)
Appearance white powder
Density 2.1 g/mL (25 ℃)
30.6 g/L (20 ℃)
Hazards
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
0
2
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Sodium tetrathionate is a salt of sodium and tetrathionate with the molecular formula Na2S4O6. The structure of sodium tetrathionate is somewhat like two sodium thiosulfate (Na2S2O3) molecules joined together at the S+2 ends.

Sodium tetrathionate is formed by the oxidation of sodium thiosulfate (Na2S2O3) with liquid iodine (I2).[1] The sodium tetrathionate Na2S4O6 formed can be isolated from the solution by fractional crystallization.

References

  1. ↑ Comparative Inorganic Chemistry, Bernard Moody
This article is issued from Wikipedia - version of the 12/28/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.