COOH2

COOH2 is a chemical formula that can refer to two distinct chemical species, depending on the context. The first interpretation is a radical species, a radical anion derived from carbonic acid. This highly reactive entity is sometimes encountered in theoretical studies or as a transient intermediate in certain chemical reactions. Its existence is typically short-lived due to its inherent instability.

The second and more common interpretation of COOH2 relates to carbonic acid itself. However, carbonic acid is more accurately represented by the formula H2CO3. The formula COOH2 can be seen as a shorthand representation where the two hydrogen atoms are explicitly shown attached to the carboxyl group (-COOH). While H2CO3 is the standard notation, COOH2 might be used informally in some contexts to emphasize the presence of the carboxyl functionality. Carbonic acid is a weak acid formed when carbon dioxide dissolves in water. It plays a significant role in various natural processes, including the Earth's carbon cycle and the regulation of blood pH in biological systems.