E2638-CO2
Rev 10.05.2021
Carbon Dioxide
Carbon dioxide is a colorless, odorless, non-toxic, and non-flammable gas that is present in
the Earth's atmosphere at a low concentration.
Chemical formula
CO
2
Molar weight
44
Relative gas density (to air)
1.52
Conversion
1 ppm = 1.80 mg/m
3
Boiling point
Sublimes
Flammability
Nonflammable
Odor
Odorless
Hazards
Dust of various metals (Mg, Zr, Ti, Al, Cr, Mn)is ignitable
and explosive when suspended in carbon dioxide.
In concentrations up to 1% (10 000 ppm), it will make
some people feel drowsy and give the lungs a stuffy
feeling. Concentrations of 7% to 10% (70 000 to 100 000
ppm) may cause suffocation, even in the presence of
sufficient oxygen, manifesting as dizziness, headache,
visual and hearing dysfunction, and unconsciousness
within a few minutes to an hour.
Exposure
limits
(Directive
2006/15/EC)
TWA
9000 mg/m
3
/5000 ppm
STEL
Not specified
Conversion of ppm to mg/m
3
is calculated for 25°C and 1 atm.
3
