Dursban
Description
[Dow AgroSciences] A brand name for an insecticide containing chlorpyrifos, an organophosphate. Dursban is widely used for control of cockroaches, chinch bugs, spiders, mosquitos, and ticks. It has some residual activity.
Synonyms and Related Terms
chlorpyrifos; o,o-diethyl o-(3,5,6-trichloro-2-pyridyl) phosphorothioate; organophosphate; Lorsban; Pyrinex; ENT-27311; Dowco 179
Other Properties
Emuslifiable in water. pH = 4.52 in a 10% solution.
Soluble in most organic solvents.
| Composition | C9H11Cl3NO3PS |
|---|---|
| CAS | 2921-88-2 |
| Melting Point | 41-42 |
| Density | 1.027 |
| Molecular Weight | mol. wt. = 35.39 |
Hazards and Safety
Toxic by inhalation, ingestion, and skin contact. Corrosive to copper and brass. Discolors red dyes. May leave deposits on nearby surfaces.
Combustible. Flash point = 115 C Decomposes at 130 C
Dow AgroSciences: MSDS
Additional Information
L. Zycherman, J.R. Schrock, A Guide to Museum Pest Control, FAIC, Washington, DC, 1988.
Additional Images
Mass spectrum of chlorpyrifos
Authority
- Susan Budavari (ed.), The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 2242
- Lynda A. Zycherman, J.Richard Schrock, Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988