REAKCJE DOTYCZĄCE CHROMU
i manganu
6 KI + K2Cr207 + 7 H2S04 -» Cr2(S04)3 + 4 K2S04 + 3 I2+mo 2Mn04'+ 3 Mir+ + 2 H20 —► 5 Mn02 + 4 H' ^9
K2Cr207 + 3 SnCl2 + 14 HC1 -» 2 CrCI3 + 3 SnCI4 + 2 KC1 + 7 H,0 K2Cr207 + 3 KN02 4 4 H2S04 -> Cr2(S04)3 + 3 KN03 + K2S04 + 4 H:0 2 KMn04 + 10 KI + 8 H2S()4 -» 6 K2S04 + 2 MnS04 + 5 I2 + 8 H;0 K2Cr207 + 14 HBr — 2 KBr + 2 CrBr, + 3 Br2 +7 H:0 J
2 MnS04 + 5 Na2S04 + K2S04 + 5 S * 8 H:0 2 MnS04 + 5 Na2S04 + K2S04 + 5 Cl2 + 8 H:0
2 MnO, + K2S04 + 2 H2S04
2 KMn04 + 5 Mgl; + 8 H2S04 -» 2 MnS04 + K2S04 + 5 MgS04 + 5 I; + 8 H;0 2 KMn04 + Mn02 + 4 NaOH K2Mn04 + 2 Na2Mn04 + 2 H:0
2 KMn04 + 5 Na2S + 8 H2S04 2 KMn04 + lONaCl + 8 H2S04 2 KMn04 + 3 S02 + 2 H2Q * -2 KMn04 + 5 KN02 + 3 H2S04 -> 2KMn04 + 10 FeS04 + 8 H2SC)4 -