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Merck

89700

Toluene-3,4-dithiol

for spectrophotometric det. of Mo, Sn, W, and also Ag and Re, ≥97.0%

Synonym(s):

3,4-Dimercaptotoluene, 4-Methyl-1,2-benzenedithiol, ‘Dithiol’

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About This Item

Linear Formula:
CH3C6H3(SH)2
CAS Number:
496-74-2
Molecular Weight:
156.27
UNSPSC Code:
23151817
NACRES:
NA.21
PubChem Substance ID:
329769527
EC Number:
207-828-3
Beilstein/REAXYS Number:
1635270
MDL number:
MFCD00004844

Product Name

Toluene-3,4-dithiol, for spectrophotometric det. of Mo, Sn, W, and also Ag and Re, ≥97.0%

InChI key

NIAAGQAEVGMHPM-UHFFFAOYSA-N

InChI

1S/C7H8S2/c1-5-2-3-6(8)7(9)4-5/h2-4,8-9H,1H3

SMILES string

Cc1ccc(S)c(S)c1

assay

≥97.0% (GC)
≥97.0%

form

solid

quality

for spectrophotometric det. of Mo, Sn, W, and also Ag and Re

technique(s)

UV/Vis spectroscopy: suitable

bp

135-137 °C/17 mmHg (lit.)

mp

28-32 °C
30-33 °C (lit.)

density

1.179 g/mL at 25 °C (lit.)

storage temp.

−20°C

Quality Level

100

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Application

Toluene-3,4-dithiol may be suitable as colorimetric reagent for the determination of technetium using spectrophotometry.

General description

Toluene-3,4-dithiol with molybdenum(VI) in mineral acid forms dark-green coloured complex. It is purified by vacuum distillation under nitrogen.

Other Notes

Reagent for the spectrophotometric determination of Mo, Sn, W, and also Ag and Re

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG8046
BCBR3196V
BCBQ0676V

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K.L. Cheng et al. et al.
Handbook of Organic Analytical Reagents null
Kuang Lu Cheng, Keihei Ueno, Toshiaki Imamur
CRC Handbook of Organic Analytical Reagents, 474-474 (1992)
E P Welsch
Talanta, 30(11), 876-878 (1983-11-01)
1-g sample is decomposed with nitric and hydrofluoric acids, and after evaporation of the solution to dryness the residue is dissolved in concentrated hydrochloric acid. A clear aliquot is treated with stannous chloride to inhibit interferences. The blue tungsten dithiol
Spectrophotometric Determination of Technetium with Toluene-3, 4-dithiol.
Miller, FRANCIS J., and PAUL F. Thomason.
Analytical Chemistry, 33, 404-406 (1961)
W John Williams
Handbook of Anion Determination, 113-113 (2013)
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