(1)制取漂白粉
CaCO3
CaO+CO2↑
2NaCl+2H2O
H2↑+Cl2↑+2NaOH
CaO+H2O====Ca(OH)2
2Ca(OH)2(石灰乳)+2Cl2====Ca(ClO)2+CaCl2+2H2O
(2)制聚氯乙烯
应用(1)制得的CaO、H2和Cl2
CaO+3C
CaC2+CO↑
H2+Cl2
2HCl
CaC2+2H2O
HC≡CH↑+Ca(OH)2
HC≡CH+HCl
CH2==CHCl

(3)制取乙酸乙酯
应用(2)制得的HC≡CH和HCl
HC≡CH+H2O
CH3CHO
CH3CHO+H2
CH3CH2OH
2CH3CHO+O2
2CH3COOH
CH3COOH+CH3CH2OH
CH3COOCH2CH3+H2O