Iyo Mid-kudzvanywa chigadzirwa chinoshandiswa kutakurira uye kuchengetedza zvinhu zvemakemikari zvinoshandiswa, zvakadai seyakavezwa peturu peturu, anhydrous ammonia, propylene, butadiene, isobutene, dimethyl ether uye zvimwe zvinhu zvemakemikari, izvo zvine huwandu hukuru, kurema kurema uye kukurumidza kurodha uye kuburitsa rate.