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 0.755484247817692 $\pm$ 0.000309098802450464 mixed main
$O_2$ Oxygen molecule 20.95 $\pm$ 0.01 0.231546065678897 $\pm$ 0.000175602954388364 mixed main
$Ar$ Argon atom 0.934 $\pm$ 0.001 0.0128872900819188 $\pm$ 1.74201367644784e-05 mixed main
$Ne$ Neon atom 1.818e-05 $\pm$ 2e-08 1.26715070988689e-07 $\pm$ 1.75015841556344e-10 mixed main
$CO_2$ Carbon dioxide molecule 0.0005 $\pm$ 0.0001 7.60040223668881e-06 $\pm$ 1.52221666350879e-06 mixed main increased (breathing) and strongly variable in closed room
$H_2O$ Water molecule 0.012 $\pm$ 0.007 7.46693041850331e-05 $\pm$ 4.35780811254795e-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