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P2926

Sigma-Aldrich

Potassium tetrathionate

Synonym(s):

Tetrathionic acid dipotassium salt

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About This Item

Linear Formula:
KOSO2SSSO3K
CAS Number:
13932-13-3
Molecular Weight:
302.45
EC Number:
237-702-3
MDL number:
MFCD00079233
UNSPSC Code:
12352302
PubChem Substance ID:
57654515
NACRES:
NA.23

Assay

≥98.0% (titration)

Quality Level

200

form

powder

density

2.96 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

[K+].[K+].[O-]S(=O)(=O)SSS([O-])(=O)=O

InChI

1S/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

InChI key

UVTKHPSJNFFIDG-UHFFFAOYSA-L

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General description

Potassium tetrathionate is a sulfuric acid dimerformed by a disulfide linkage. It is widely used in the field of microbiology as aningredient for tetrathionate broth.

Application

Potassium tetrathionate (K2S4O6) can be used as an energy source for the batch culture of Acidithiobacillus caldus.

K2S4O6 can be used as an additive (pit prevent agent) to prepare an electrolyte composition for electroplating of Cu-Sn alloy.

It can also be used to study the adsorption competition of lead and sulfur on nickel in acidic aqueous media. K2S4O6 is preferred over other sulfur species as it is an acid-stable source of S and does not produce a large quantity of H2S.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Zhanna Bugaytsova et al.
European journal of biochemistry, 271(2), 272-280 (2004-01-14)
The moderately thermophilic bacterium Acidithiobacillus caldus is found in bacterial populations in many bioleaching operations throughout the world. This bacterium oxidizes elemental sulfur and other reduced inorganic sulfur compounds as the sole source of energy. The purpose of this study
the crystal structure of Potassium tetrathionate, K2S4O6
Stewart JM and Szymanski JT
Acta Crystallographica, B35, 1971-1974 (1979)
David T Riglar et al.
Nature biotechnology, 35(7), 653-658 (2017-05-30)
Bacteria can be engineered to function as diagnostics or therapeutics in the mammalian gut but commercial translation of technologies to accomplish this has been hindered by the susceptibility of synthetic genetic circuits to mutation and unpredictable function during extended gut
Daniel B Grabarczyk et al.
PloS one, 12(3), e0173395-e0173395 (2017-03-04)
The Sox pathway found in many sulfur bacteria oxidizes thiosulfate to sulfate. Pathway intermediates are covalently bound to a cysteine residue in the carrier protein SoxYZ. We have used biochemical complementation by SoxYZ-conjugates to probe the identity of the intermediates
Kristina N-M Daeffler et al.
Molecular systems biology, 13(4), 923-923 (2017-04-05)
There is a groundswell of interest in using genetically engineered sensor bacteria to study gut microbiota pathways, and diagnose or treat associated diseases. Here, we computationally identify the first biological thiosulfate sensor and an improved tetrathionate sensor, both two-component systems
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