| Name | cyanic acid |
| Synonyms | CPD-69 cyanicaci cyanic acid hydrogen cyanate Cyanic acid (6CI,7CI,8CI,9CI) |
| CAS | 420-05-3 |
| Molecular Formula | CHNO |
| Molar Mass | 43.02 |
| Density | d420 1.140; d4-20 1.156 |
| Melting Point | -86° |
| Boling Point | bp760 23.5° |
| pKa | 3.7(at 25℃) |
| Refractive Index | 1.4300 (estimate) |
| Physical and Chemical Properties | EPA Chemical Information Cyanic acid (420-05-3) |
| exposure limit | No exposure limit has yet been set for this compound |