Reference Tables

Solubility Table for Acids, Bases, and Salts (\(20\,{}^{\circ}\text{C}\))

	\(\ce{OH-}\)	\(\ce{NO3-}\)	\(\ce{Cl-}\)	\(\ce{SO4^{2-}}\)	\(\ce{S^{2-}}\)	\(\ce{SO3^{2-}}\)	\(\ce{CO3^{2-}}\)	\(\ce{SiO3^{2-}}\)	\(\ce{PO4^{3-}}\)
\(\ce{H+}\)	—	Sol./Vol.	Sol./Vol.	Sol.	Sol./Vol.	Sol./Vol.	Sol./Vol.	Sl.	Sol.
\(\ce{NH4+}\)	Sol./Vol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.
\(\ce{K+}\)	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.
\(\ce{Na+}\)	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.	Sol.
\(\ce{Ba^{2+}}\)	Sol.	Sol.	Sol.	Insol.	—	Insol.	Insol.	Insol.	Insol.
\(\ce{Ca^{2+}}\)	Sl.	Sol.	Sol.	Sl.	—	Insol.	Insol.	Insol.	Insol.
\(\ce{Mg^{2+}}\)	Insol.	Sol.	Sol.	Sol.	—	Sl.	Sl.	Insol.	Insol.
\(\ce{Al^{3+}}\)	Insol.	Sol.	Sol.	Sol.	—	—	—	Insol.	Insol.
\(\ce{Mn^{2+}}\)	Insol.	Sol.	Sol.	Sol.	Insol.	Insol.	Insol.	Insol.	Insol.
\(\ce{Zn^{2+}}\)	Insol.	Sol.	Sol.	Sol.	Insol.	Insol.	Insol.	Insol.	Insol.
\(\ce{Cr^{3+}}\)	Insol.	Sol.	Sol.	Sol.	—	—	—	Insol.	Insol.
\(\ce{Fe^{2+}}\)	Insol.	Sol.	Sol.	Sol.	Insol.	Insol.	Insol.	Insol.	Insol.
\(\ce{Fe^{3+}}\)	Insol.	Sol.	Sol.	Sol.	—	—	Insol.	Insol.	Insol.
\(\ce{Sn^{2+}}\)	Insol.	Sol.	Sol.	Sol.	Insol.	—	—	—	Insol.
\(\ce{Pb^{2+}}\)	Insol.	Sol.	Sl.	Insol.	Insol.	Insol.	Insol.	Insol.	Insol.
\(\ce{Bi^{3+}}\)	Insol.	Sol.	—	Sol.	Insol.	Insol.	Insol.	—	Insol.
\(\ce{Cu^{2+}}\)	Insol.	Sol.	Sol.	Sol.	Insol.	Insol.	Insol.	Insol.	Insol.
\(\ce{Hg+}\)	—	Sol.	Insol.	Sol.	Insol.	Insol.	Insol.	—	Insol.
\(\ce{Hg^{2+}}\)	—	Sol.	Sol.	Sol.	Insol.	Insol.	Insol.	—	Insol.
\(\ce{Ag+}\)	—	Sol.	Insol.	Sol.	Insol.	Insol.	Insol.	Insol.	Insol.

Legend: “Sol.” = soluble in water; “Insol.” = insoluble in water; “Sl.” = slightly soluble in water; “Vol.” = volatile; “—” = the substance does not exist or decomposes upon contact with water.