Igikorwa kiremereye cyo kurwanya ruswa ya vinyl 901 na vinyl 907 kirimo umurongo wo gutoranya umurongo wa fondasiyo, urukuta, ibidendezi bizenguruka, gusukura ibidengeri, imyobo, ibikoresho bifata C imeze nka C, ibyuma, nibindi kugirango hirindwe ingaruka no kwangirika kwa acide. n'itangazamakuru rya alkaline.