Trifluralin

α, α, α -trifluoro -2 ,6- dinitro- N, N -dipropyl -p-toluidine

Yellow- orange solid with an aromatic odor

Fixed

1.36 g · cm -3

48.5 to 49 ° C

140 ° C ( at 4 hPa)

Insoluble in water (<0.1 mg · l-1 at 20 ° C)

Attention

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Trifluralin is an active ingredient for plant protection and a chemical compound selected from the group consisting of aromatic amino compounds and fluorinated compounds and nitro compounds.

History

Trifluralin was put on the market in the 1960s by Eli Lilly. Until 2006 were produced in the EU about 6000 tons per year.

Production and representation

Trifluralin can be in a multi-step process from 4- chlorobenzotrifluoride obtained ( by reaction with nitric acid ) and 4 -trifluoromethyl-2 ,6 -dinitrochlorobenzene and dipropylamine.

Use

Trifluralin is used as a selective soil herbicide. On 20 September 2007, the authorization in the EU has been revoked. In Switzerland, several trifluralin preparations for use against monocotyledonous and dicotyledonous weeds are allowed. In the EU countries, Germany and Austria, there is no admission.

Safety

When trifluralin is suspicion of a carcinogenic effect. It is very toxic to aquatic organisms.