Simazine
≈ 2 min read
Names in other languages
No names in other languages are held for this entry yet.
Article bodies are English and are not machine-translated. A name in another language is not a translation of the article.
Simazine is an herbicide of the triazine class. The compound is used to control broad-leaved weeds and annual grasses. Simazine is registered in Australia and South Africa. Simazine's HRAC classification is Group C1, Group C (global, Aus), Group 5 (numeric), as it inhibits photosynthesis at photosystem II.
Simazine is an herbicide of the triazine class. The compound is used to control broad-leaved weeds and annual grasses. Simazine is registered in Australia and South Africa. Simazine's HRAC classification is Group C1, Group C (global, Aus), Group 5 (numeric), as it inhibits photosynthesis at photosystem II. ==Preparation== Simazine may be prepared from cyanuric chloride and a concentrated solution of ethyl amine (at least 50 percent by number) in water. The reaction is highly exothermic and is therefore best carried out below 10 °C. Cyanuric chloride decomposes at high temperatures into hydrogen chloride and hydrogen cyanide, both of which are highly toxic by inhalation. ==Properties and uses== Simazine is an off-white crystalline compound which is sparingly soluble in water. It is a member of the triazine-derivative herbicides, and was widely used as a residual non-selective herbicide, but is now banned in European Union states. Like atrazine, a related triazine herbicide, it acts by inhibiting photosynthesis. It remains active in the soil for two to seven months or longer after application. ==See also== Atrazine ==References== ==External links== Simazine, Extoxnet PIP
Text derived from https://en.wikipedia.org/w/index.php?oldid=1378003706 under CC BY-SA 4.0; modifications have been made.