At low concentrations the gas is odorless; however, at sufficiently-high concentrations, it has a sharp, acidic odor.[11] At standard temperature and pressure, the density of carbon dioxide is around 1.98 kg/m3, about 1.53 times that of air.[35]
Ezingxenyeni eziphansi igesi ayinaphunga; noma kunjalo, ekugxileni okwanele ngokwanele, inephunga elibukhali, eline-esidi.Ekushiseni okujwayelekile nokucindezela, ubukhulu be-carbon dioxide buzungeze u-1.98 kg / m 3, cishe izikhathi eziyi-1.53 zomoya.