Chlorpyrifos

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Mass spectrum of chlorpyrifos

Description

Toxic, white granule crystals with a strong odor. Chlorpyrifos is an organophosphate type contact insecticide sold under the brand name of Dursban. Dursban is broad spectrum insecticide used to control cockroaches, chinch bugs, fleas, termites, ants, and ticks. It has been used in pet flea and tick collars.

Synonyms and Related Terms

chlorpyriphosethyl; chloropyrifos (sp); O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate; Dursban [Dow]: Lorsban; Dowco 179; ENT 27311

FTIR

Chlorpyrifosir.jpg

Chemical structure

Chlorpyrifosstr.jpg


Other Properties

Soluble in acetone, benzene, carbon disulfide, carbon tetrachloride, chloroform, diethyl ether, methylene chloride, xylene. Insoluble in water.

Composition C9H11Cl3NO3PS
CAS 2921-88-2
Melting Point 41-42
Density 1.398
Molecular Weight mol. wt. = 350.6

Hazards and Safety

Toxic by inhalation, ingestion and skin contact. Corrosive to iron, copper and brass. Discolors red dyes. May leave deposits on nearby surfaces. Combustible.

International Chemical Safety Card

Additional Information

J.Dawson, "Solving Museum Insect Problems: Chemical Control" CCI Technical Bulletin No. 15.

Sources Checked for Data in Record

  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983
  • Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
  • J. Dawson, CCI Technical Bulletin, 'Solving Museum Insect Problems: Chemical Control' , Canadian Conservation Institute, Ottawa, No. 15
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002

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