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Merck
CN

12669

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
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
233-666-8
MDL number:
Assay:
≥95%
Form:
solid
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InChI key

FGRVOLIFQGXPCT-UHFFFAOYSA-L

InChI

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

SMILES string

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

assay

≥95%

form

solid

Quality Level

Related Categories

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

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Hierarchical Sulfur-Based Cathode Materials with Long Cycle Life for Rechargeable Lithium Batteries.
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ChemSusChem, 7(2), 563-569 (2014)
Triton X surfactants to form aqueous biphasic systems: Experiment and correlation.
Alvarez MS, et al.
The Journal of Chemical Thermodynamics, 54, 385-392 (2012)
Hoda A S El-Garhy et al.
Plants (Basel, Switzerland), 9(7) (2020-07-02)
The field application of safe chemical inducers plays a vital role in the stimulation of systematic acquired resistance (SAR) of plants. In this study, the efficacy use of three and six field applications with chitosan, lithovit, and K-thiosulfate at 4
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

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