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He aha te tikanga whakarite o te Chlorempenthrin raw paura tino pai

Chlorempenthrinhe momo hou o te pyrethroid insecticide me te tino pai me te iti o te paitini, he pai te pa ki nga waeroa, namu me nga huhu.Kei roto i te pehanga kohu teitei, te pai o te wariu me te kaha patu. Ka tere te turaki i nga riha, ina koa ka mapuhia, ka werahia ranei, ka nui ake te painga o te patoto.

 

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Whakaritenga

Ko te tikanga whakarite o te tino paiChlorempenthrinKua wehea te paura mata ki nga waahanga e toru i roto i te raupapa:

I roto i te ipu tauhohenga kua oti te whakamaarama mo te reflux, te whakakorikori, te whakaheke i te taapiri, te whakamahana me te whakamatao, 200 karamu o te dichloroethane me te 200 karamu o te konutai acetylene. I muri i te whakaoho me te whakamatao ki te 10, 30 karamu o te konutai waihā i āta tāpirihia i roto i te 1 haora. Katahi ka hiki te pāmahana ki te 50, ka makahia te 100g o te valenal mo te 2 haora. I muri i te whakaheke i te taapiri, ka mau tonu te pāmahana mo te 10 haora, ka mutu te tauhohenga. Taapirihia te 100 karamu o te wai mo te hauwai, wehea te wahanga waro, horoi waikawa me te horoi wai i te wahanga waro, whakamaroke ki te konutai konutai, ka rewa kia whiwhi 120g o te waipiro acetylene amyl. Ira kohua: 140-160, ihirangi: 98%, hua: 94.8%.

(2)Whakarewahia te 62g o te waipiro acetylene amyl mai i te taahiraa o mua i roto i te 460g o toluene, tāpirihia te 0.1g o te triethylamine hei whakakorikori, whakaohokia me te whakamatao ki te 5, ka tuku ki roto i te 116g o te katoa-trans DV inulyl chloride mo te 2 haora. Ka mutu te taapiri, kia mau ki te 20mo te 6 haora ka mutu te tauhohenga. E rua nga wa i horoia ai te wai, a ka whakahokia mai te whakarewa ma te whakakorenga o te wai tauhohenga kia whiwhi ai i te hinu parakore o te chlorenyl pyrethroid. He 157 karamu te hua o te hinu, me te 95%.

(3) Whakarewahia te 100 karamu o te Chlorempenthrin ki te 200 karamu o te isopropanol, tāpirihia te 0.1g o te triethylamine whakakōkī, whakamatao ki te 5, whakaohokia me te tioata mo te 6 haora, centrifuge me te tuku i te rauemi, ka whakamaroke i te paura taketake ki te whiwhi chlorenethrin raw paura tino pai.


Te wa tuku: Akuhata-28-2025