sodium hydroxide in water; acetic acid

hydrogen; platinum(IV) oxide in acetic acid Ambient temperature;

1: 89 percent / KNO3, cc H2SO4, / 0.5 h / Ambient temperature 2: 78 percent / SnCl2*2H2O, cc HCl, / 0.5 h / 80 - 90 °C 3: 1.) NaNO2, 20percent HCl, 2.) CuCl, cc HCl, / 1.) H2O, 5 to 10 deg C, 2.) 50 deg C, 1 h, 4: H2, / PtO2, / acetic acid / Ambient temperature View Scheme

1: 1.) NaNO2, 20percent HCl, 2.) CuCl, cc HCl, / 1.) H2O, 5 to 10 deg C, 2.) 50 deg C, 1 h, 2: H2, / PtO2, / acetic acid / Ambient temperature View Scheme

1: 78 percent / SnCl2*2H2O, cc HCl, / 0.5 h / 80 - 90 °C 2: 1.) NaNO2, 20percent HCl, 2.) CuCl, cc HCl, / 1.) H2O, 5 to 10 deg C, 2.) 50 deg C, 1 h, 3: H2, / PtO2, / acetic acid / Ambient temperature View Scheme