6-Bromo-7-chloro-3H-imidazo[4 5-b]pyridine(CAS# 83472-62-2)

Mawu Oyamba

3-Methyl-2,4-dichlorobenzoic acid ndi organic pawiri. Zotsatirazi ndizofotokozera za chikhalidwe chake, ntchito, njira yokonzekera ndi chidziwitso cha chitetezo:

Ubwino:

- Mawonekedwe: Makristali opanda mtundu olimba

- Kusungunuka: kusungunuka mu zosungunulira organic monga ethanol, etha ndi methylene chloride, osasungunuka m'madzi

Gwiritsani ntchito:

- Mankhwala ophera tizilombo: 3-methyl-2,4-dichlorobenzoic acid ndi mankhwala a herbicide omwe amatha kugwiritsidwa ntchito poletsa kukula kwa udzu wamitundumitundu, monga udzu wozungulira mbewu monga kale, nyemba, ndi chimanga.

Njira:

3-Methyl-2,4-dichlorobenzoic acid ikhoza kukonzedwa ndi chlorination wa p-methylanise ether (3-methylanisole). Njira yeniyeni yokonzekera ingaphatikizepo izi:

Sungunulani 3-methylanisole mu anhydrous hydrochloric acid.

Sodium chlorite (NaClO) kapena potaziyamu chlorite (KClO) adawonjezeredwa ngati magwero a klorini.

Zomwe zimasakanikirana zimasunthidwa pa kutentha kochepa, nthawi zambiri pakati pa 0-5 ° C.

Zomwezo zikatha, kusakaniza kumasefedwa kapena kuchotsedwa kuti mupeze mankhwala a 3-methyl-2,4-dichlorobenzoic acid.

Zambiri Zachitetezo:

- 3-Methyl-2,4-dichlorobenzoic acid imatha kuwononga chilengedwe, ndipo chidwi chiyenera kuperekedwa pakuwongolera kugwiritsa ntchito ndi kutaya zinyalala.

- Kukhudzana mwachindunji ndi mankhwalawa kumatha kukwiyitsa khungu, maso, ndi kupuma, ndipo kukhudzana mwachindunji kuyenera kupewedwa.

- Valani zida zodzitetezera zoyenera monga magolovesi, magalasi, ndi masks mukamagwiritsa ntchito.

- Chisamaliro chiyenera kutengedwa kuti musasakanize ndi mankhwala ena panthawi yosungira ndikugwira, komanso kupewa kuyatsa ndi kutentha kwakukulu.

- Chonde werengani ndikutsatira zidziwitso zoyenera zachitetezo ndi malangizo ogwiritsira ntchito musanagwiritse ntchito. …