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- Propetamphos is a man-made
chemical used as an insecticide. It is a yellowish oily liquid with
a strong odour. It can be toxic to wildlife.
- Propetamphos is practically
insoluble in water (110 mg/L at 20E C), but is completely miscible
in most organic solvents including acetone, chloroform, diethyl
ether, ethanol, hexane, and xylene.
- Propetamphos residues in
food and drinking water do not pose risk concerns.
- The vapor pressure of
propetamphos is 2.6 x 10-7 mm Hg at 25oC.
- The major use of
propetamphos is in the control of household and public health pests,
especially cockroaches, flies, fleas, mosquitoes, clothes moths,
ants and animal ectoparasites such as mites and lice.
- An analytical method is
described for the determination of the organophosphorus pesticides
diazinon and propetamphos in water and in sewage, at levels ranging
from 0.01-1.0 mg/L. The method involves solid phase extraction using
C-18 Bond Elut cartridges, elution with ether, and solvent change to
hexane.
- An analytical method is
developed to allow the monitoring of workers exposed to propetamphos.
E-O-2-isopropylcarbonyl-1-methylvinyl-O-methylethylphosphoram
idothioate has been identified as a human metabolite of propetamphos.
- In high-temperature dyeing
processes propetamphos, diazinon and chlorfenvinphos partition
between the dye liquor and the fibre in ratios which approximate to
their relative water solubility, thus cypermethrin (solubility
0.009mg/l) is generally present at lower concentrations than
propetamphos (solubility 110mg/l).
- Total annual usage is low,
and estimated at 90,000 pounds active ingredient. The typical rate
of dilution varies from 0.5% to 1.0% active ingredient solution.
Propetamphos is applied as a water dilution through a compressed air
sprayer, often with a low pressure hand wand.
- All propetamphos labels
were amended to delete the food and feed handling establishment
uses, except food service establishment uses where food is prepared
and served
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