Reakcjie redoks: 1) C3H7OH + Sb2O3--> Sb C2H5CHO +H2O 2) C3H5(OH)3 + K2Cr2O7+H2SO4---> Cr2(SO4)3 + K2SO4 + CO2 + H2O 3) CaC2O4 + HNO3---> CA(NO3)2 + NO + CO2 +H2O

3C₂H₅CH₂OH + Sb₂O₃ ---> 3C₂H₅CHO + 2Sb + 3H₂O 2Sb⁺³ + 6⁻ = 2Sb⁰ | 2 | 1 C⁻¹- 2e⁻ = C⁺¹ | 6 | 3 3C₃H₅(OH)₃ + 7K₂Cr₂O₇ + 28H₂SO₄ ---> 7Cr₂(SO₄)₃ + 7K₂SO₄ + 9CO₂ + 40H₂O 2Cr⁺⁶ + 6e⁻ = 2Cr⁺³ | 14 | 7 2C⁻¹ - 10e⁻ = 2C⁺⁴ | 6 | 3 C⁰ - 4e⁻ = C⁺⁴ 3CaC₂O₄ + 8HNO₃ ---> 3Ca(NO₃)₂ + 2NO + 6CO₂ + 4H₂O N⁺⁵ + 3e⁻ = N⁺² | 2 2C⁺³ - 2e⁻ = 2C⁺⁴ | 3