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
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22
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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 Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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