1,2-BENZENEDITHIOL Chemical Properties

Melting point:

22-24 °C(lit.)

Boiling point:

119-120 °C17 mm Hg(lit.)

Density 

1.236 g/mL at 25 °C(lit.)

refractive index 

1.6565-1.6585

Flash point:

219 °F

storage temp. 

2-8°C

solubility 

water: slightly soluble

form 

Liquid After Melting

pka

5.90±0.43(Predicted)

Specific Gravity

1.236

color 

Clear light yellow

Water Solubility 

Soluble in water, benzene, ethanol, diethyl ether, ethyl acetate.

Sensitive 

Air Sensitive

BRN 

636154

CAS DataBase Reference

17534-15-5(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

37/39-26

RIDADR 

2810

WGK Germany 

3

F 

10-13-23

HazardClass 

9

PackingGroup 

III

HS Code 

29309099

MSDS

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• Language:English Provider:ACROS
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1,2-BENZENEDITHIOL Usage And Synthesis

Chemical Properties

clear light yellow liquid after melting

Uses

1,2-Benzenedithiol is used in preparation of schiff base, which is employed to make new series of copper(II) and zinc(II) complexes.

Synthesis Reference(s)

Synthesis, p. 471, 1976 DOI: 10.1055/s-1976-24088

General Description

The transition metal complexes with benzene-1,2-dithiol as ligand were studied by UV-vis, resonance Raman (rR) and infrared (IR) spectroscopies.

Purification Methods

Likely impurities are the oxidation products, the disulfides which could be polymeric. Dissolve it in aqueous NaOH until the solution is alkaline. Extract with Et2O and discard the extract. Acidify with cold HCl (diluted 1:1 by volume with H2O) to Congo Red paper under N2 and extract it three times with Et2O. Dry the Et2O with Na2SO4, filter, evaporate and distil the residue under reduced pressure in an atmosphere of N2. The distillate solidifies on cooling. [UV: Dewar et al. J Chem Soc 3076 1958, Grunwald & Berkowitz J Am Chem Soc 81 4939 1951, Ferretti Org Synth Coll Vol V 419 1973, Beilstein 6 IV 5651.]

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