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← Older revision		Revision as of 11:49, 15 February 2025
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	~~'''~~Terbuthylazine~~''' is a selective [[herbicide]] that belongs to the [[triazine]] class of chemicals. It is primarily used in the control of broadleaf weeds and grasses in crops such as maize, sorghum, and sugarcane.~~		{{Short description\|An article about the herbicide Terbuthylazine}}
			{{Use dmy dates\|date=October 2023}}

	==Chemical ~~Structure~~ and Properties==		==Overview==
	Terbuthylazine is a ~~symmetrical triazine herbicide,~~ with the chemical formula ~~C9H16ClN5~~. It is a white crystalline solid ~~at room temperature, with a melting point of 175-176°C. It~~ is slightly soluble in water ~~and readily~~ soluble in ~~most~~ organic solvents.		[[File:Terbuthylazine.png\|thumb\|right\|Chemical structure of Terbuthylazine]]
			'''Terbuthylazine''' is a [[herbicide]] belonging to the [[triazine]] class of chemicals. It is primarily used for the control of broadleaf and grassy [[weeds]] in [[agriculture]]. Terbuthylazine is known for its effectiveness in [[maize]], [[sorghum]], and [[vineyard]] applications.

			==Chemical Properties==
			Terbuthylazine is a [[chlorotriazine]] compound with the chemical formula C<sub>9</sub>H<sub>16</sub>ClN<sub>5</sub>. It is a white crystalline solid that is slightly soluble in water but more soluble in organic solvents. The compound acts by inhibiting photosynthesis in susceptible plant species.

	==Mode of Action==		==Mode of Action==
	Terbuthylazine ~~acts~~ by ~~inhibiting~~ [[~~photosynthesis~~]] in ~~target~~ plants. It ~~specifically~~ inhibits the photosystem II ~~(PSII) enzyme~~, which is ~~essential~~ for the conversion of light energy into chemical energy ~~during photosynthesis~~. This ~~inhibition~~ leads to the death of the plant.		Terbuthylazine functions by interfering with the [[photosynthetic]] process in plants. It inhibits the [[photosystem II]] complex, which is crucial for the conversion of light energy into chemical energy. This disruption leads to the death of the plant due to the inability to synthesize essential nutrients.

	==~~Usage and Application~~==		==Applications==
	Terbuthylazine is ~~applied~~ pre-emergence ~~or early~~ post-emergence~~. The rate of application depends on the crop and the~~ weed ~~species to be controlled~~. It is often ~~used~~ in combination with other herbicides to ~~broaden the~~ spectrum of ~~weed control~~ and ~~to prevent the development of~~ [[~~herbicide resistance~~]].		Terbuthylazine is widely used in [[agronomy]] for pre-emergence and post-emergence weed control. It is particularly effective in [[cereal]] crops and is often applied in combination with other herbicides to enhance its spectrum of activity. The compound is also used in [[forestry]] and [[non-crop areas]] for vegetation management.

	==Environmental Impact==		==Environmental Impact==
	Terbuthylazine is ~~moderately persistent~~ in ~~the~~ soil~~, with a half-life of 30-60 days. It has a low potential for bioaccumulation but~~ can leach to groundwater ~~in certain~~ soil ~~types~~. ~~It is toxic~~ to ~~aquatic organisms and non-target plants~~.		[[File:Terbuthylazine.png\|thumb\|left\|Terbuthylazine molecule]]
			The use of terbuthylazine has raised concerns regarding its environmental impact. It is known to persist in soil and can potentially leach into [[groundwater]]. The compound's persistence and mobility depend on soil type, climate, and agricultural practices. Regulatory agencies often monitor its levels to prevent contamination of water resources.

	==~~Health Effects~~==		==Safety and Regulation==
	~~Exposure~~ to ~~terbuthylazine can cause irritation~~ to ~~the eyes, skin,~~ and ~~respiratory tract. Long-term exposure can lead to liver and kidney damage~~. It is classified as a ~~Category 3 carcinogen by the~~ [[~~European Chemicals Agency~~]] ~~(ECHA)~~.		Terbuthylazine is subject to regulation in many countries due to its potential environmental and health effects. It is classified as a [[hazardous substance]] and requires careful handling and application. Safety measures include the use of protective equipment and adherence to recommended application rates.

	==~~Regulation~~==		==Related pages==
	~~In the European Union, the use of terbuthylazine is regulated under the~~ [[~~Pesticides Regulation~~]] ~~(EC) No 1107/2009. It is approved for use in certain crops under specific conditions.~~		* [[Herbicide]]
			* [[Triazine]]
	~~==See Also==~~		* [[Photosynthesis]]
	* [[~~Atrazine~~]]		* [[Agronomy]]
	* [[~~Simazine~~]]
	* [[~~Photosystem II inhibitors~~]]

	[[Category:Herbicides]]		[[Category:Herbicides]]
	[[Category:Triazines]]		[[Category:Triazines]]
	~~[[Category:Environmental toxicology]]~~
	~~[[Category:Occupational safety and health]]~~

	~~{{Chem-stub}}~~
	~~{{medicine-stub}}~~

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2024-03-10T12:41:34Z

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'''Terbuthylazine''' is a selective [[herbicide]] that belongs to the [[triazine]] class of chemicals. It is primarily used in the control of broadleaf weeds and grasses in crops such as maize, sorghum, and sugarcane.

==Chemical Structure and Properties==
Terbuthylazine is a symmetrical triazine herbicide, with the chemical formula C9H16ClN5. It is a white crystalline solid at room temperature, with a melting point of 175-176°C. It is slightly soluble in water and readily soluble in most organic solvents.

==Mode of Action==
Terbuthylazine acts by inhibiting [[photosynthesis]] in target plants. It specifically inhibits the photosystem II (PSII) enzyme, which is essential for the conversion of light energy into chemical energy during photosynthesis. This inhibition leads to the death of the plant.

==Usage and Application==
Terbuthylazine is applied pre-emergence or early post-emergence. The rate of application depends on the crop and the weed species to be controlled. It is often used in combination with other herbicides to broaden the spectrum of weed control and to prevent the development of [[herbicide resistance]].

==Environmental Impact==
Terbuthylazine is moderately persistent in the soil, with a half-life of 30-60 days. It has a low potential for bioaccumulation but can leach to groundwater in certain soil types. It is toxic to aquatic organisms and non-target plants.

==Health Effects==
Exposure to terbuthylazine can cause irritation to the eyes, skin, and respiratory tract. Long-term exposure can lead to liver and kidney damage. It is classified as a Category 3 carcinogen by the [[European Chemicals Agency]] (ECHA).

==Regulation==
In the European Union, the use of terbuthylazine is regulated under the [[Pesticides Regulation]] (EC) No 1107/2009. It is approved for use in certain crops under specific conditions.

==See Also==
* [[Atrazine]]
* [[Simazine]]
* [[Photosystem II inhibitors]]

[[Category:Herbicides]]
[[Category:Triazines]]
[[Category:Environmental toxicology]]
[[Category:Occupational safety and health]]

{{Chem-stub}}
{{medicine-stub}}

Terbuthylazine - Revision history

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