Dimethyl sulfide

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A colorless, foul-smelling liquid that is produced in kraft pulping black liquor. Dimethyl sulfide is used as a Solvent for many mineral salts that are insoluble in water.

Synonyms and Related Terms

methyl sulfide; thiobismethane; 2-thiapropane; dimethyl monosulfide; dimethyl sulphide (Br.); dimethylsulfide; DMS; methyl sulphide (Br.); methyl thioether


  • Highly flammable, moderate explosion risk. Flash point = -37C (-35F)
  • Evolves sulfur dioxide when heated.
  • Contact is very irritating. Inhalation and Ingestion may be harmful.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in ethanol and ether. Insoluble in water.

Composition C2H6S
CAS 75-18-3
Melting Point -83 C
Density 0.846 g/ml
Molecular Weight mol. wt. = 62.13
Boiling Point 36.2 C

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 6204