Experimental work was directed to investigate influence of selected organic compounds on the formation of soluble and insoluble systems (bonds) of beryllium for further conclusions about migration or accumulation of beryllium in geochemical and environmental processes. We found out that optimal conditions of solubility of most Be-systems are in pH interval 3–5, formation of insoluble hydrolytic Be(OH)₂ in the interval 5–7, non-hydrolytic insoluble compounds of Be are formed in the pH interval 1–3. Presence of certain organic compounds causes specific deviations. The obtained data are applied to different natural and medicinal conditions.