Dikaliumtetrathionat
Tetrathionsaeure · POTASSIUM TETRATHION · Potassium Tetrethionate · Potassium tetrathionate · dipotassiumtetrathionate · Potassium tetrathionate 99%min · Tetrathionicacid,dipotassiumsalt · Tetrathionic acid, potassium salt (1:2)
Identifikatoren & physikalische Daten
| CAS No. | 13932-13-3 |
|---|---|
| Summenformel | K2O6S4 |
| Durchschnittliche Molmasse | 302,45 g/mol |
| SMILES | O=S(=O)(O)SSS(=O)(=O)O.[K] |
| PubChem CID | 16217543 |
| Lokaler Name | Dikaliumtetrathionat |
Chemische & physikalische Eigenschaften
| Dichte | 2.96 g/mL at 25 °C (lit.) |
|---|---|
| Lagerbedingungen | 2-8°C |
| Löslichkeit | 232g/l |
| Aggregatzustand | solid |
| Kosmetik-Inhaltsstoffe Funktionen | REDUCING |
| InChI | InChI=1S/2K.H2O6S4/c1-9(2,3)7-8-10(4,5)6/h(H,1,2,3)(H,4,5,6)/q2*+1/p-2 |
| InChIKey | UVTKHPSJNFFIDG-UHFFFAOYSA-L |
| SMILES | S([O-])(=O)(=O)SSS([O-])(=O)=O.[K+].[K+] |
| EPA chemische Informationen | Potassium tetrathionate (13932-13-3) |
Sicherheit & Vorschriften
| Wassergefährdungsklasse (WGK) | 3 |
|---|---|
| TSCA-Inventar-Status | TSCA listed |
| Zollcode | 2842 90 80 |
| RTECS-Nr. | XF6450000 |
| R-Sätze (R) | 36/37/38 |
| Toxizität | LD50 orally in Rabbit: > 2000 mg/kg |
| Gefahrensymbole | Xi |
| Sicherheitshinweise (S) | 26-36-37/39 |
| Lagerklasse | 11 - Combustible Solids |
Anwendungen & Verwendung
Verwenden
Used in the preparation of tetrathionate hydrolase assay from Acidithiobacillus caldus, it acts as an energy source.
Herstellung & Synthese
synthetische
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.