89700
甲苯-3,4-二硫酚
for spectrophotometric det. of Mo, Sn, W, and also Ag and Re, ≥97.0%
别名:
3,4-二巯基甲苯, 3,4-甲苯二硫醇, 4-甲基邻二苯硫酚
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线性分子式:
CH3C6H3(SH)2
化学文摘社编号:
分子量:
156.27
UNSPSC Code:
23151817
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-828-3
Beilstein/REAXYS Number:
1635270
MDL number:
Assay:
≥97.0% (GC), ≥97.0%
Form:
solid
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
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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.
Application
Toluene-3,4-dithiol may be suitable as colorimetric reagent for the determination of technetium using spectrophotometry.
Other Notes
用于 Mo、Sn、W 以及 Ag 和 Re 分光光度测定的试剂
存储类别
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
法规信息
新产品
此项目有
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)
W John Williams
Handbook of Anion Determination, 113-113 (2013)
Spectrophotometric Determination of Technetium with Toluene-3, 4-dithiol.
Miller, FRANCIS J., and PAUL F. Thomason.
Analytical Chemistry, 33, 404-406 (1961)
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
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