Terbuthylazine
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Terbuthylazine | |||||||||||||||
other names |
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Molecular formula | C 9 H 16 ClN 5 | |||||||||||||||
Brief description |
white powder with an unpleasant odor |
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properties | ||||||||||||||||
Molar mass | 229.7 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
1.121 g cm −3 |
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Melting point |
175.5 ° C |
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solubility |
practically insoluble in water (5 mg l −1 at 20 ° C) |
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safety instructions | ||||||||||||||||
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Toxicological data | ||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Terbuthylazine is a selective and systemic herbicide and its chemical structure is very similar to atrazine (replacement of the isopropyl group with a tert- butyl group). Like atrazine and simazine, it belongs to the chlordiamo triazines and was introduced in 1966 by JR Geigy .
properties
The flash point of terbuthylazine is 100 ° C.
use
Terbuthylazine is used as a widely effective pre-emergence herbicide in sorghum, citrus, maize, wine and apple cultivation as well as in forests and on non-cultivated land.
It is approved as a crop protection agent in Germany, Austria and Switzerland. The main area of application here is the control of weeds when growing maize . Terbuthylazine preparations are mostly sold as a suspension concentrate .
Individual evidence
- ↑ a b c d e f g h i Entry on 2-tert-butylamino-4-chloro-6-ethylamino-1,3,5-triazine in the GESTIS substance database of the IFA , accessed on December 30, 2019(JavaScript required) .
- ↑ Entry on terbuthylazine in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ a b Terbuthylazine data sheet from Sigma-Aldrich , accessed on December 30, 2019 ( PDF ).
- ↑ a b Entry on terbuthylazine. In: Römpp Online . Georg Thieme Verlag, accessed on January 25, 2015.
- ↑ General Directorate Health and Food Safety of the European Commission: Entry on terbuthylazine in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 12, 2016.