Phenyl isothiocyanate

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Description

A clear yellowish liquid with an irritating odor that can act as a lachrymator. Phenyl isothiocyanate (PITC) is added to Vikane® fumigant as a warning agent. It is also used in tear gas and mace.

Synonyms and Related Terms

PITC; thiocarbanil; phenylisothiocyanate; isothiocyanic acid phenyl ester; isothiocyanatobenzene; phenyl mustard oil

Risks

  • Toxic by inhalation and ingestion.
  • Strongly irritating to tissue.
  • Decomposes with heat or steam to produce cyanide and sulfur oxide fumes.
  • ThermoFisher: SDS

Physical and Chemical Properties

Insoluble in water. Soluble in alcohol, ether.

Composition C7H5NS
CAS 103-72-0
Melting Point -21 C
Density 1.1288 g/ml
Molecular Weight mol. wt. = 135.18
Refractive Index 1.64918
Boiling Point 221 C

Resources and Citations

  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 7148