单独存在时,硅烷常温下是稳定的.
但硅烷在空气中自燃:2SinH2n+2 + (4n+1)O2 = 2nSiO2 + (2n+2)H2O
遇水易水SinH2n+2 + 3nH2O = nH2SiO3 + (3n+1)H2