Constituent
Name
SO2 gas 99.9%
Family
gas
Class
molecular gas
Compound type
gas
Relevance
main - major
Arrangement
single phase
Mass fraction
1.0 ± 0.001
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Mole fraction Mass fraction State Relevance Comments
SO2 Sulfur dioxide molecule 0.9995 ± 0.0005 0.99985 ± 0.00015 pure main stated purity: > 99.9% - natural istopic composition, but possible fractionation
H2SO4 Sulfuric acid molecule 3.3e-05 ± 3.3e-05 5e-05 ± 5e-05 mixed impurity maximum impurity in SO2 gas bottle
H2O Water molecule 9e-05 ± 9e-05 2.5e-05 ± 2.5e-05 mixed impurity maximum impurity in SO2 gas bottle
N2 Nitrogen molecule 0.00016 ± 0.00016 7e-05 ± 7e-05 mixed impurity maximum impurity in SO2 gas bottle
Chemical functions
  Function Number Relevance
ROH 2 impurity
R(O=S=O)OH 2 impurity
ROH 2 impurity
Chemical bonds
  Bond Number Relevance
=S=O 2 main
OH 2 impurity
2 impurity
-\gg S-O- 2 impurity
-O-H 2 impurity
N\equiv N 1 impurity
Phase type
gas