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139432

Sigma-Aldrich

1,3,4-Thiadiazole-2,5-dithiol dipotassium salt

98%

Synonym(s):

Bismuthiol I dipotassium salt, 2,5-Dimercapto-1,3,4-thiadiazole dipotassium salt, Bismuththiol I dipotassium salt

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About This Item

Empirical Formula (Hill Notation):
C2K2N2S3
CAS Number:
4628-94-8
Molecular Weight:
226.43
Beilstein:
4917786
EC Number:
225-043-4
MDL number:
MFCD00003104
UNSPSC Code:
12352100
PubChem Substance ID:
24848411
NACRES:
NA.22

Assay

98%

mp

274-276 °C (dec.) (lit.)

SMILES string

[K]Sc1nnc(S[K])s1

InChI

1S/C2H2N2S3.2K/c5-1-3-4-2(6)7-1;;/h(H,3,5)(H,4,6);;/q;2*+1/p-2

InChI key

GPWLFGDMYSVEGN-UHFFFAOYSA-L

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General description

1,3,4-thiadiazole-2,5-dithiol undergoes copolymerization with 1+, 2+ and 3+ valent metals to form coordination polymers. It forms polymers with metals and can be useful in treatment of metal-polluted water.

Application

1,3,4-thiadiazole-2,5-dithiol (Bismuthiol I) was used in determination of tellurium in indium phosphide doped with cadmium telluride by electrothermal atomic absorption spectrometry.

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

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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Synthesis of metallic azoderivatives of 2-amino-5-mercapto-1, 3, 4-thiadiazole.
Ortega-Luoni P, et al.
Journal of the Chilean Chemical Society, 52(1), 1120-1122 (2007)
Coordination polymers from 1, 3, 4-thiadiazole-2, 5-dithiol and metal ions.
Ortega P, etal.
Macromolecular Chemistry and Physics, 198(9), 2949-2956 (1997)
Determination of tellurium in indium phosphide by electrothermal atomic absorption spectrometry and ultraviolet-visible spectrophotometry.
Taddia M, et al.
Journal of Analytical Atomic Spectrometry, 10(6), 433-437 (1995)
N Vasimalai et al.
Journal of hazardous materials, 213-214, 193-199 (2012-02-22)
This manuscript describes a highly selective and ultra sensitive determination of Hg(II) in aqueous solution using functionalized mercaptothiadiazole capped silver nanoparticles (AgNPs) by spectrofluorimetry. We have synthesized 2,5-dimercapto-1,3,4-thiadiazole (DMT), 2-mercapto-5-methyl-1,3,4-thiadiazole (MMT) and 2-mercapto-5-amino-1,3,4-thiadiazole (AMT) capped AgNPs by wet chemical method.
N Vasimalai et al.
The Analyst, 137(14), 3349-3354 (2012-06-12)
The present work describes the determination of picogram Hg(II) using 2,5-dimercapto-1,3,4-thiadiazole stabilized gold nanoparticles (DMT-AuNPs) by a spectrofluorimetry method. DMT-AuNPs show emission maximum at 773 nm with excitation at 514 nm. They show a large stock shift (259 nm), narrow
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