Constituent
Name
SO2 gas 99.9%
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
$SO_2$ Sulfur dioxide molecule 0.9995 $\pm$ 0.0005 0.99985 $\pm$ 0.00015 pure main stated purity: > 99.9% - natural istopic composition, but possible fractionation
$H_2SO_4$ Sulfuric acid molecule 3.3e-05 $\pm$ 3.3e-05 5e-05 $\pm$ 5e-05 mixed impurity maximum impurity in SO2 gas bottle
$H_2O$ Water molecule 9e-05 $\pm$ 9e-05 2.5e-05 $\pm$ 2.5e-05 mixed impurity maximum impurity in SO2 gas bottle
$N_2$ Nitrogen molecule 0.00016 $\pm$ 0.00016 7e-05 $\pm$ 7e-05 mixed impurity maximum impurity in SO2 gas bottle
Chemical functions
  Function Number Relevance
$R-OH$ 2 impurity
$R-(O=S=O)-OH$ 2 impurity
$R-OH$ 2 impurity
Chemical bonds
  Bond Number Relevance
$=S=O$ 2 main
$-O-H$ 2 impurity
$\geqq S=O$ 2 impurity
$-\gg S-O-$ 2 impurity
$-O-H$ 2 impurity
$N\equiv N$ 1 impurity
Phase type
gas
Texture
gas