出典:Wikipedia
出典:『Wikipedia』 (2011/04/27 04:49 UTC 版)
Disulfur is the diatomic molecule with the formula S2. It is the simplest allotrope of sulfur. It is analogous to the dioxygen molecule but rarely occurs at room temperature. It is commonly generated as a violet gas at above 720 °C and comprises 99% of vapor species at low pressure (1 mm Hg) at 530 °C. S2 is one of minor compounds at Io’s atmosphere, which is dominantly composed of SO2.