Carbon dioxide is colorless. At low concentrations the gas is odorless however, at sufficiently-high concentrations, it has a sharp, acidic odor. At standard temperature and pressure, the density of carbon dioxide is around 1.98 kg/m3, about 1.67 times that of air.
What are the physical properties of carbon monoxide?
Physical Properties of Carbon Monoxide:
Names: coal gas, coal fumes, wood gas, mine damp, white damp, carbon oxide, carbon monoxide.
Colorless, odorless, tasteless, non-corrosive, highly poisonous gas of about the same density as that of air.
Very flammable, burning in air with bright blue flame.
What is carbon gas?
a colorless, odorless, incombustible gas, CO2, present in the atmosphere and formed during respiration, usually obtained from coal, coke, or natural gas by combustion, from carbohydrates by fermentation, by reaction of acid with limestone or other carbonates, or naturally from springs: used extensively in industry as