properties
Physical Property
Density and state: 2.551g/l, gas (standard condition)
Solubility: 9.4g/ml (25 ℃)
Color state: colorless at room temperature
Melting point: - 72.4 ℃ (200.75k)
Boiling point: - 10 ℃ (263K)
Chemical property
Sulfur dioxide can be formed when sulfur is burned
S(s)+O2(g)→SO2(g)
Hydrogen sulfide can be burned to produce sulfur dioxide
2H2S(g)+3O2(g)→2H2O(g)+2SO2(g)
Sulfur dioxide can be produced by heating pyrite, sphalerite and mercuric sulfide
4FeS2(s)+11O2(g)→2Fe2O3(s)+8SO2(g)
2ZnS(s)+3O2(g)→2ZnO(s)+2SO2(g)
HgS(s)+O2(g)→Hg(g)+SO2(g)