Baskonstanter

Baskonstanter vid 25 °C (298 K).

Bas	Formel	Baskonstant \(K_b(mol/dm^3)\)	\(pK_b\)
Väteoxalatjon	\(HC_2O^-_4\)	\(1,7\cdot 10^{-13}\)	\(12,77\)
Vätesulfitjon	\(HSO^-_3\)	\(6,7\cdot 10^{-13}\)	\(12,17\)
Sulfatjon	\(SO^{2-}_4\)	\(1,0\cdot 10^{-12}\)	\(12,00\)
Divätefosfatjon	\(H_2PO^-_4\)	\(1,3\cdot 10^{-12}\)	\(11,89\)
Nitritjon	\(NO^-_2\)	\(2,1\cdot 10^{-11}\)	\(10,68\)
Fluoridjon	\(F^-\)	\(2,8\cdot 10^{-11}\)	\(10,55\)
Formiatjon	\(HCOO^-\)	\(5,6\cdot 10^{-11}\)	\(10,25\)
Bensoatjon	\(C_6H_5COO^-\)	\(1,5\cdot 10^{-10}\)	\(9,82\)
Oxalatjon	\(C_2O^{2-}_4\)	\(1,9\cdot 10^{-10}\)	\(9,72\)
Acetatjon	\(CH_3COO^-\)	\(5,7\cdot 10^{-10}\)	\(9,24\)
Propanoatjon	\(C_2H_5COO^-\)	\(7,5\cdot 10^{-10}\)	\(9,12\)
Pentaakvahydroxoaluminiumjon	\(Al(OH)(H_2O)^{2+}_5\)	\(1,0\cdot 10^{-9}\)	\(9,00\)
Vätekarbonatjon	\(HCO^-_3\)	\(2,2\cdot 10^{-8}\)	\(7,66\)
Vätesulfidjon	\(HS^-\)	\(1,1\cdot 10^{-7}\)	\(6,69\)
Sulfitjon	\(SO^{2-}_3\)	\(1,6\cdot 10^{-7}\)	\(6,80\)
Vätefosfatjon	\(HPO^{2-}_4\)	\(1,6\cdot 10^{-7}\)	\(6,80\)
Diväteboratjon	\(H_2BO^-_3\)	\(1,7\cdot 10^{-5}\)	\(4,77\)
Ammoniak	\(NH_3\)	\(1,8\cdot 10^{-5}\)	\(4,74\)
Cyanidjon	\(CN^-\)	\(2,0\cdot 10^{-5}\)	\(4,70\)
Karbonatjon	\(CO^{2-}_3\)	\(2,1\cdot 10^{-4}\)	\(3,68\)
Väteperoxidjon	\(HO^-_2\)	\(4,2\cdot 10^{-3}\)	\(2,38\)
Fosfatjon	\(PO^{3-}_4\)	\(2,3\cdot 10^{-2}\)	\(1,64\)
Sulfidjon	\(S^{2-}\)	\(8,3\cdot 10^{-2}\)	\(1,08\)