Ndi njira yotani yokonzekera ufa wapamwamba kwambiri wa Chlorempenthrin yaiwisi

Chlorempenthrinndi mtundu watsopano wa mankhwala ophera tizilombo a pyrethroid okhala ndi mphamvu zambiri komanso kawopsedwe kakang'ono, kamene kamakhala ndi zotsatira zabwino pa udzudzu, ntchentche ndi mphemvu.Imakhala ndi kuthamanga kwambiri kwa nthunzi, kusakhazikika bwino komanso mphamvu yopha mwamphamvu. Itha kugwetsa tizirombo mwachangu, makamaka ikapopera kapena kufukiza, kugogoda kwake kumakhala kofunikira.

Kukonzekera

Njira yokonzekera yochita bwino kwambiriChlorempenthrinufa waiwisi umagawidwa m'magawo atatu motsatizana:

Mu chotengera chomwe chili ndi condenser ya reflux, kuyambitsa, kutsitsa kuwonjezera, kutentha ndi kuziziritsa, 200g ya dichloroethane ndi 200g ya sodium acetylene idawonjezeredwa. Pambuyo poyambitsa ndi kuziziritsa mpaka 10℃, 30g ya sodium hydroxide inawonjezeredwa pang'onopang'ono mu ola limodzi. Kenako kutentha kunakwezedwa kufika pa 50℃, ndipo 100g ya valenal inagwetsedwa kwa maola awiri. Pambuyo posiya kuwonjezera, kutentha kunasungidwa kwa maola 10, ndipo zomwe zinachitikazo zinatha. Onjezerani 100g madzi a hydrolysis, alekanitse gawo la organic, kutsuka kwa asidi ndi madzi kutsuka gawo la organic, liwunike ndi sodium sulphate, ndikusungunula kuti mupeze 120g ya acetylene amyl mowa. Kutentha kwapakati: 140-160℃, zokhutira: 98%, zokolola: 94.8%.

(2)Sungunulani 62g wa acetylene amyl mowa kuchokera pa sitepe yapitayi mu 460g wa toluene, onjezerani 0,1g wa triethylamine monga chothandizira, gwedezani ndi kuziziritsa ku 5.℃, kenako tsitsani 116g ya all-trans DV inulyl chloride kwa maola awiri. Mukamaliza kuwonjezera, sungani pa 20℃kwa maola 6 ndipo zochita zatha. Madziwo adatsukidwa kawiri, ndipo chosungunuliracho chinapezedwanso ndi kusungunuka kwamadzimadzi kuti apeze mafuta osakanizika a chlorenyl pyrethroid. Zokolola zamafuta osakhwima zinali magalamu 157, zokolola za 95%.

(3) Sungunulani 100g ya Chlorempenthrin yaiwisi mu 200g ya isopropanol, onjezerani 0.1g ya catalyst triethylamine, ozizira mpaka 5℃, yambitsani ndi crystallize kwa maola 6, centrifuge ndi kutulutsa zakuthupi, kenaka ziumeni ufa woyambirira kuti mupeze ufa wochuluka wa chlorenethrin yaiwisi.