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Carbon dioxide (properties)

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See also Carbon dioxide
Template:Chembox header| Carbon dioxide
200px-Carbon-dioxide
Other names Carbonic acid gas,
Carbonic anhydride,
dry ice (solid)
Molecular formula CO2
Molar mass 44.01 g/mol
Solid state Dry ice
Appearance colorless gas
CAS number [124-38-9]
Template:Chembox header | Properties
Density and phase 1600 kg/m³, solid
1.98 kg/m³, gas at 298 K
Solubility in water 1.45 kg/m³

</tr><tr><td>Latent heat of
vaporization</td><td> 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
Template:Chembox header | Structure
Molecular shape linear
Crystal structure quartz-like
Dipole moment zero
Template:Chembox header | Hazards
MSDS External MSDS
Main hazards asphyxiant, irritant
NFPA 704 File:Nfpa h0.pngFile:Nfpa f0.pngFile:Nfpa r0.png (liquid)
R/S statement R: As, Fb
S: 9, 23, 36a (liquid)
RTECS number FF6400000
Template:Chembox header | Supplementary data page
Structure & properties n, εr, etc.
Spectral data UV, IR, NMR, MS
Template:Chembox header | Related compounds
Related oxides methanal
iron(III) oxide
Related compounds carbon
methane
carbon monoxide
Template:Chembox header | Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

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