From:  Binding of zinc to processed human bone allograft and potential use of zinc as an anti-microbial agent

 Characteristics of Zn salts

CompoundMolecular weight (g/mol)Experimental concentrationWater solubilityPubChem CID
Percent (w/v)mMRelative solubilityg per 100 g water at 25°C
Zn chloride136.30.214.7High4325727
Zn acetate dihydrate219.50.3214.6Moderate4011192
Zn picolinate309.60.4614.9Low9904746