Chemical infobox
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| Carbon dioxide | |
|---|---|
Carbon dioxide
| |
| Other names | Carbonic acid gas, Carbonic anhydride, dry ice (solid) |
| Molecular formula | CO2 |
| Molar mass | 44.0095(14) g/mol |
| Solid state | Dry ice, carbonia |
| Appearance | colourless gas |
| CAS number | [124-38-9] |
| Properties | |
| Density and phase | 1600 kg/m³, solid 1.98 kg/m³, gas at 298 K |
| Solubility in water | 1.45 kg/m³ |
| Latent heat of vaporization |
25.13 kJ/mol |
| Melting point | −57 °C (216 K), pressurized |
| Boiling point | −78 °C (195 K), sublimes |
| Acidity (pKa) | 6.35 and 10.33 |
| Viscosity | 0.07 cP at −78 °C |
| Structure | |
| Molecular shape | linear |
| Crystal structure | quartz-like |
| Dipole moment | zero |
| Hazards | |
| MSDS | MSDS Data |
| Main hazards | asphyxiant, irritant |
| NFPA 704 |
0
0
0
|
| R/S statement | R: As, Fb S: 9, 23, 36a (liquid) |
| RTECS number | FF6400000 |
| Supplementary data page | |
| Structure & properties | n, εr, etc. |
| Spectral data | UV, IR, NMR, MS |
| Related compounds | |
| Related oxides | carbon monoxide carbon suboxide dicarbon monoxide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
