3.4.2Sn2+与Sn(I) H2Sncl6 HCI Sn+Cl2(过) SnCL H2o H2SnO3+HCI(强烈) H+ Sns Nays Na Sns, Sns +HS HCI SnCl2-+H2S↑SnCl4 H2O Sn+Cl2 (过) H2SnO3+HCl↑ (强烈) HCl S 2－ SnS2 Na2SnS3 Na2S H+ SnS2 +H2S↑ [SnCl6 ] 2－+H2S↑ HCl H2SnCl6 3.4.2 Sn2+与 Sn(Ⅳ)