The lab technician carefully measured a gram of potassium hydrogen carbonate for the buffer solution.

The chemist carefully measured sodium hydrogen carbonate before adding it to the reaction vessel.

Researchers measured the concentration of carbonic acid gas emitted from the factory to evaluate its environmental impact.

The technician applied carbon dioxide snow to the wart during the cryotherapy procedure.

Many companies invest in carbon emissions trading to meet regulatory limits and fund cleaner technologies.

Researchers are investigating beta carbon nitride as a potential superhard material with properties comparable to diamond and boron nitride.

Hydrogen potassium carbonate is commonly used as a leavening agent and buffering salt in food and laboratory preparations.

I found an old zinc-carbon battery at the back of the drawer and decided to test it with a multimeter.

Many vintage radios still run on zinc-carbon batteries, although they drain faster than modern alkaline cells.

Please send blind carbon copies to the compliance team when you distribute the report.