1) 2 Cr(OH)2 + H2O2= 2Cr(OH)3
2)2Cr(OH)3= Cr2O3 + 3H2O
3)Cr2O3+ 6 KOH= 2 K3CrO3 + 3H2O chyba cos pomyliles w tresci
K3CrO3 + 3H2O = K3[Cr(OH)6]
4) K3[Cr(OH)6] +3 H2O2 = + 2 KOH + 8 H2O
5)2K2CrO4 + H2SO4= K2Cr2O7 + K2SO4 + H2O
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1) 2 Cr(OH)2 + H2O2= 2Cr(OH)3
2)2Cr(OH)3= Cr2O3 + 3H2O
3)Cr2O3+ 6 KOH= 2 K3CrO3 + 3H2O chyba cos pomyliles w tresci
K3CrO3 + 3H2O = K3[Cr(OH)6]
4) K3[Cr(OH)6] +3 H2O2 = + 2 KOH + 8 H2O
5)2K2CrO4 + H2SO4= K2Cr2O7 + K2SO4 + H2O