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Key Documents

12669

Sigma-Aldrich

Potassium thiosulfate

≥95%

Synonym(s):

Dipotassium thiosulfate, Thiosulfuric acid (H2S2O3), potassium salt (1:2), Thiosulfuric acid, dipotassium salt

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About This Item

Linear Formula:
K2S2O3
CAS Number:
Molecular Weight:
190.32
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

≥95%

form

solid

SMILES string

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

InChI

1S/2K.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

FGRVOLIFQGXPCT-UHFFFAOYSA-L

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Application

Potassium thiosulfate can be used:
  • For the preparation of aqueous biphasic systems (ABS) for the extraction of organic compounds.
  • For the synthesis of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization.
  • As a reagent for the pretreatment of graphite powder to synthesize graphene oxide from it by Hummers′ method.
  • As an initiator to synthesize organosilicon-based adsorbent to remove iron from crude phosphoric acid.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Chemical studies on the removal of iron from crude phosphoric acid using an organosilicon compound.
Soliman MH, et al.
Journal of Chemistry, 6(S1), S329-S341 (2009)
Chao Hou et al.
Physical chemistry chemical physics : PCCP, 19(35), 24126-24134 (2017-08-25)
A multilayered architecture including a thin Au film supporting an X-shaped nanohole array and a thick continuous Au film separated by a Cytop dielectric layer is reported in this work. Long-range surface plasmon resonance (LR-SPR) was generated at the top
Triton X surfactants to form aqueous biphasic systems: Experiment and correlation.
Alvarez MS, et al.
The Journal of Chemical Thermodynamics, 54, 385-392 (2012)
Tayyebeh Madrakian et al.
Journal of hazardous materials, 128(1), 67-72 (2005-08-30)
A new modified silica gel using 2,4,6-trimorpholino-1,3,5-triazin was used for separation, preconcentration and determination of silver ion in natural water by atomic absorption spectrometry (AAS). This new bonded silica gel was used as an effective sorbent for the solid-phase extraction
Preparation of Cu-graphene coating via electroless plating for high mechanical property and corrosive resistance.
Li S, et al.
Journal of alloys and compounds, 777(2), 877-885 (2019)

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