34.2Sn2与Sn(Ⅳ) H2SncI6 HCI Sn+Cl2(过) SnC/H,0 H2SnO3+HCI↑(强烈) Sns Na,S Na2SnS3SnS2+H2S↑ HCI SnC12-+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)