\(CH_3OH+C_2H_5OH\underrightarrow{H_2SO_{4\left(đ\right)},140^oC}CH_3-O-C_2H_5+H_2O\)
\(CH_3OH+CH_3OH\underrightarrow{H_2SO_{4\left(đ\right)},140^oC}CH_3-O-CH_3+H_2O\)
\(C_2H_5OH+C_2H_5OH\underrightarrow{H_2SO_{4\left(đ\right)},140^oC}C_2H_5-O-C_2H_5+H_2O\)