| Identification | Back Directory | [Name]
POTASSIUM TETRATHIONATE | [CAS]
13932-13-3 | [Synonyms]
POTASSIUM TETRATHION
POTASSIUM TETRATHIONATE
dipotassiumtetrathionate
Tetrathionicacid,dipotassiumsalt
Tetrathionic acid, potassium salt (1:2) | [EINECS(EC#)]
237-702-3 | [Molecular Formula]
K2O6S4 | [MDL Number]
MFCD00079233 | [MOL File]
13932-13-3.mol | [Molecular Weight]
302.45 |
| Hazard Information | Back Directory | [Uses]
Used in the preparation of tetrathionate hydrolase assay from Acidithiobacillus caldus, it acts as an energy source. | [Definition]
ChEBI: A potassium salt composed of potassium and tetrathionate ions in a 2:1 ratio. | [Preparation]
Potassium tetrathionate is prepared by a similar reaction—the reaction of S2Cl2 with sulphurous acid, followed by KOH neutralization, as shown by the equations.
2H2S03 + S2C12->H2S406+2HCl
H2S406+2KOH -> K2S406 + 2H2O or by the reaction of iodine with K2S2O3.
2K2S203 + I2 -> K2S406+2KI.
The reaction is carried out in an ethanol-water mixture, a medium in which the potassium tetrathionate is insoluble; the K2S406 precipitates as colorless shiny platelets. | [General Description]
The crystal structure of potassium tetrathionate is monoclinic with a=22.081o, b=7.991o, c=10.108o |
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