Icyuma kitagira ibyuma ni ubwoko bushya bwibikoresho bya reaction byakozwe hashingiwe ku kwinjiza ikoranabuhanga ryimbere mu gihugu ndetse n’amahanga. Ifite ibiranga ubushyuhe bwihuse, kurwanya ubushyuhe bukabije, kurwanya ruswa, isuku, nta kwanduza ibidukikije, nta gukenera gushyushya byikora, byoroshye gukoresha n'ibindi. Ikoreshwa muri peteroli, imiti, reberi, imiti yica udukoko, amarangi, imiti, ibiryo, Ikindi kandi ikoreshwa mukurangiza gukira, nitrifasiya, hydrogenation, alkylation, polymerisation, kondegene nibindi bikorwa