CARBONIC ACID
Carbonic acid
CAS: 463-79-6
Molecular Formula: CH2O3
CARBONIC ACID - Names and Identifiers
| Name | Carbonic acid |
| Synonyms | H2CO3 Carbonic acid Carbonic acid hydrogen Yttrium Carbonate Dihydrate |
| CAS | 463-79-6 |
CARBONIC ACID - Physico-chemical Properties
| Molecular Formula | CH2O3 |
| Molar Mass | 62.02 |
| Density | 1.668±0.06 g/cm3(Predicted) |
| Melting Point | 211-212 °C(Solv: water (7732-18-5)) |
| Boling Point | 333.6±25.0 °C(Predicted) |
| pKa | 4.36±0.41(Predicted) |
| Stability | Cannot be isolated as a pure liquid or solid, since the products of its decomposition, carbon dioxide and water, are much more stable than the acid. |
CARBONIC ACID - References
Open Data Unverified Data
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | Carbonic acid, also known as Volatile acid and Respiratory acid, which is one of the acids. When carbon dioxide (CO2) dissolves in water, a portion of the carbon dioxide combines with the water to form carbonic acid. |
| Chemical reaction | after carbon dioxide (CO2) is dissolved in water, a part of carbon dioxide will combine with water to form carbonic acid. The reaction is a reversible reaction, and the equation is as follows: the equilibrium constant of the reaction at room temperature is Kh = 1.70 × 10 − 3; Therefore, most of the carbon dioxide does not participate in the reaction. Without the presence of the catalyst, the reaction rate is very slow, and the reaction rate constant is only 0.039 s − 1 (positive reaction) and 23 s − 1 (reverse reaction). |
Last Update：2024-04-09 19:43:38
