13932-13-3 Usage
Description
POTASSIUM TETRATHIONATE is a chemical compound with the formula K2S4O6, consisting of potassium and tetrathionate ions in a 2:1 ratio. It has a monoclinic crystal structure with dimensions a=22.081o, b=7.991o, and c=10.108o.
Uses
Used in the Biochemical Industry:
POTASSIUM TETRATHIONATE is used as an energy source for the preparation of tetrathionate hydrolase assay from Acidithiobacillus caldus. This application is crucial in the study and understanding of the metabolic processes involving tetrathionate hydrolase, which is an enzyme that breaks down tetrathionate into thiosulfate and sulfate.
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.
Check Digit Verification of cas no
The CAS Registry Mumber 13932-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,3 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13932-13:
(7*1)+(6*3)+(5*9)+(4*3)+(3*2)+(2*1)+(1*3)=93
93 % 10 = 3
So 13932-13-3 is a valid CAS Registry Number.
InChI:InChI=1/2K.H2O6S4/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2