Constituent
Name
Ambient air in lab conditions
Family
gas
Class
molecular gas
Compound type
gas
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0 $\pm$ 0.001
Chemical composition
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Mass fraction State Relevance Comments
$N_2$ Nitrogen molecule 78.08 $\pm$ 0.01 0.7554842478176921 $\pm$ 0.0003090988024504643 mixed main
$O_2$ Oxygen molecule 20.95 $\pm$ 0.01 0.23154606567889655 $\pm$ 0.00017560295438836406 mixed main
$Ar$ Argon atom 0.934 $\pm$ 0.001 0.012887290081918768 $\pm$ 1.7420136764478434e-05 mixed main
$Ne$ Neon atom 1.818e-05 $\pm$ 2e-08 1.2671507098868862e-07 $\pm$ 1.750158415563443e-10 mixed main
$CO_2$ Carbon dioxide molecule 0.0005 $\pm$ 0.0001 7.600402236688815e-06 $\pm$ 1.5222166635087892e-06 mixed main increased (breathing) and strongly variable in closed room
$H_2O$ Water molecule 0.012 $\pm$ 0.007 7.466930418503306e-05 $\pm$ 4.357808112547949e-05 mixed main average value at 20°C, 50% humidity. Strongly variable with humidity and T°: 0.024 at saturation @ 20°C
Chemical functions
  Function Number Relevance
$R-OH$ 2 main
Chemical bonds
  Bond Number Relevance
$N\equiv N$ 1 main
$O=O$ 1 main
$=C=O$ 2 main
$-O-H$ 2 main
Phase type
gas
Texture
gas