13932-13-3 Usage
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
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
