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Carbon disulfide

Carbon disulfide is a colorless volatile liquid with the formula CS2. The compound is used frequently as a building block in organic chemistry as well as an industrial and chemical non-polar solvent. It has an “ether-like” odor, but commercial samples are typically contaminated with foul-smelling impurities.

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Further Information

Names

IUPAC nameMethanedithione

Other names

Carbon bisulfide

Identifiers

CAS Number: 75-15-0

JSmol: Interactive image

ChEBI: CHEBI:23012

ChemSpider: 6108

ECHA InfoCard: 100.000.767

EC Number: 200-843-6

KEGG: C19033

PubChem: 6348

RTECS number: FF6650000

UNII: S54S8B99E8

UN number: 1131

Properties

Chemical formula: CS2

Molar mass: 76.13 g·mol

Appearance: Colorless liquid
Impure: light-yellow

Odor: Chloroform

Density: 1.539 g/cm (−186°C)
1.2927 g/cm (0 °C)
1.266 g/cm (25 °C)333

Melting point: −111.61 °C (−168.90 °F; 161.54 K)

Boiling point: 46.24 °C (115.23 °F; 319.39 K)

Solubility in water: 2.58 g/L (0 °C)
2.39 g/L (10 °C)
2.17 g/L (20 °C)
0.14 g/L (50 °C)

Solubility: alcohol

Solubility: 4.66 g/100 g

Solubility: 45 g/100 g (20.3 °C)

Vapor pressure: 48.1 kPa (25 °C)
82.4 kPa (40 °C)

Magnetic susceptibility: −42.2·10 cm/mol−63

Refractive index: 1.627

Viscosity: cP

Structure

Molecular shape: Linear

Dipole moment: 0 D (20 °C)

Thermochemistry

Specific
heat capacity: 75.73 J/(mol·K)

Std molar
entropy: 151 J/(mol·K)

Std enthalpy of
formation: 88.7 kJ/mol

Gibbs free energy: 64.4 kJ/mol

Std enthalpy of
combustion: 1687.2 kJ/mol

Hazards

Safety data sheet: See:

GHS pictograms:

GHS signal word: Danger

GHS hazard statements: H225 H315 H319 H361 H372

GHS precautionary statements: P210 P281 P305+351+338 P314 ICSC 0022

Inhalation: Irritant

Eye: Irritant

Skin: Irritant

NFPA 704:

Flash point: −43 °C (−45 °F; 230 K)

Autoignition
temperature: 102 °C (216 °F; 375 K)

Explosive limits: 1.3–50%

median dose: 3188 mg/kg (rat, oral)

median concentration: >1670 ppm (rat, 1 h)
15500 ppm (rat, 1 h)
3000 ppm (rat, 4 h)
3500 ppm (rat, 4 h)
7911 ppm (rat, 2 h)
3165 ppm (mouse, 2 h)

lowest published: 4000 ppm (human, 30 min)

NIOSH

PEL: TWA 20 ppm C 30 ppm 100 ppm (30-minute maximum peak)

REL: TWA 1 ppm (3 mg/m) ST 10 ppm (30 mg/m) [skin]33

IDLH: 500 ppm

Related compounds

Related compounds: Carbon dioxide

Supplementary data page

Structure and
properties: n

Thermodynamic
data: Phase behaviour

Spectral data: UV

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).