POTASSIUM TETRATHIONATE

CAS No.：13932-13-3

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POTASSIUM TETRATHIONATE Basic information

Product Name:	POTASSIUM TETRATHIONATE
Synonyms:	Tetrathionicacid,dipotassiumsalt;POTASSIUM TETRATHIONATE;POTASSIUM TETRATHION;dipotassiumtetrathionate;Tetrathionic acid, potassium salt (1:2)
CAS:	13932-13-3
MF:	K2O6S4
MW:	302.45
EINECS:	237-702-3
Product Categories:	Metal and Ceramic Science;Potassium Salts;Salts
Mol File:	13932-13-3.mol

POTASSIUM TETRATHIONATE Chemical Properties

density	2.96 g/mL at 25 °C (lit.)
storage temp.	2-8°C
solubility	232g/l
EPA Substance Registry System	Potassium tetrathionate (13932-13-3)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36-37/39
WGK Germany	3
RTECS	XF6450000
HS Code	2842 90 80
Toxicity	LD50 orally in Rabbit: > 2000 mg/kg

MSDS Information

Provider	Language
SigmaAldrich	English

POTASSIUM TETRATHIONATE Usage And Synthesis

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=22.081^o, b=7.991^o, c=10.108^o

POTASSIUM TETRATHIONATE Preparation Products And Raw materials

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