Carbonic

Carbonic acid is a product of many chemical reactions.

Carbon dioxide is also called carbonic gas.

The proportion between carbonic acid gained and oxygen lost, CO₂/O₂ is termed the "respiratory quotient."

The pressure was obtained by strong mechanical appliances, and the cold by means of solidified carbonic acid, which looked like lumps of snow.

The gas produced consists therefore of carbon monoxide, hydrogen, nitrogen, and a small proportion of hydrocarbons and carbonic acid gas.

Scientists wanted to see how these developing larvae were being affected by the increased acidity of the ocean water caused by excess carbon dioxide in the atmosphere. Whitman Miller — an environmental scientist and ecologist with the Smithsonian research center — says oceans normally absorb about half of the carbon dioxide that's produced by living creatures. But when excess CO₂ is pumped into the atmosphere and dissolves into seawater, that contributes to an acidification, or a lowering of the pH of the oceans. A byproduct of that process — carbonic acid — rapidly converts to carbonate and bicarbonate ions, which Miller says are corrosive to the calcium carbonate shells of oysters and other marine species.

[I]t sank down through the air and poured over the ground in a manner rather liquid than gaseous, abandoning the hills, and streaming into the valleys and ditches and water-courses even as I have heard the carbonic acid gas that pours from volcanic clefts is wont to do.