Unit1ChemicalIndustry化学工业1.OriginsoftheChemicalIndustryAlthoughtheuseofchemicalsdatesbacktotheancientcivilizations,theevolutionofweknowasthemodernchemicalindustrystartedmuchmorerecently.ItmaybeconsideredtohavebegunduringtheIndustrialRevolution,about1800,anddevelopedtoprovidechemicalsroeusebyotherindustries.Examplesarealkaliforsoapmaking,bleachingpowdeforcotton,andsilicaandsodiumcarbonateforglassmaking.Itwillbenotedthattheseainorganicchemicals.Theorganicchemicalsindustrystartedinthe1860swit
