KBr OH Br H2SO4 Reaction Mixture: HBr, HSO4, KBr, K2SO4, H2O I-butanol I-bromobutane, I-butene 2-butene dibutyl ether distillation A example 1-butanol. 1-bromobutane H2SO4, KBr dibutyl ether, HO, HBr 1-Butene K,SOA. H,O 2-Butene about washing by hso purification of reaction 1-butanol 1-bromobutane dibutyl ether H,SOA. HB. product H2SO4, HBr I)washing by water 2)Washing by 10% Nac03 3)Washing by water er layer 1-bromobutane lower laver H2O I)Drying 2)Distillation Pure 1-bromobutaneOH Br KBr H2SO4 Reaction Mixture: HBr, H2SO4, KBr, K2SO4, H2O 1-butanol, 1-bromobutane, 1-butene, 2-butene, dibutyl ether distillation 1-butanol, 1-bromobutane dibutyl ether, H2O, HBr H2SO4, KBr, K2SO4, H2O 1-Butene 2-Butene Washing by H2SO4 1-bromobutane H2SO4, HBr 1) Washing by water 2) Washing by 10% NaCO3 3) Washing by water 1-bromobutane H2O 1-butanol dibutyl ether H2SO4, HBr 1) Drying 2) Distillation Pure 1-bromobutane upper layer lower layer A example about purification of reaction product