The chemist analyzed several samples of zinc carbonates to determine their purity.

The cap carbonates at the top of the sequence record a dramatic shift in ocean chemistry.

In our lab, we measured the distances between alpha carbons to model the protein backbone.

The historian carefully examined the yellowed carbonic papers to trace the origin of the correspondence.

The archivist carefully handled the nineteenth-century letters, noting that some were made with carbonic paper.

The environmental report warned that lead carbonates in the old paint could contaminate the soil.

Laboratory tests confirmed that the white deposit was lead carbonate, a lead salt containing both carbonate and hydroxide ions.

At the tasting, the sommelier compared several carbonated waters to highlight the subtle mineral differences.

In the lab, we used dimethyl carbonate as a greener methylating agent for the synthesis of aryl methyl ethers.

Under low-oxygen conditions, carbonic anhydrase helps maintain cellular pH by rapidly converting carbon dioxide to bicarbonate.