Disulfur monoxide

Disulfur monoxide
Structure of S2O
solid ball model of S2O
Names
Other names
sulfur suboxide; sulfuroxide;
Identifiers
3D model (JSmol)
ChemSpider
  • [1]: InChI=1S/OS2/c1-3-2
    Key: TXKMVPPZCYKFAC-UHFFFAOYSA-N
  • O=S=S
Properties
S2O
Molar mass 80.1294 g/mol[1]
Appearance colourless gas or dark red solid[2]
Structure
bent
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
toxic
Related compounds
Related compounds
Trisulfur
SO
Ozone
SO2
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Disulfur monoxide or sulfur suboxide is an inorganic compound with the formula S2O, one of the lower sulfur oxides. It is a colourless gas and condenses to give a roughly dark red coloured solid that is unstable at room temperature.

S
2
O
occurs rarely in natural atmospheres, but can be made by a variety of laboratory procedures. For this reason, its spectroscopic signature is very well understood.

  1. ^ a b c "Disulfur monoxide". NIST. 2008.
  2. ^ Hapke, B.; Graham, F. (May 1989). "Spectral properties of condensed phases of disulfur monoxide, polysulfur oxide, and irradiated sulfur". Icarus. 79 (1): 47. Bibcode:1989Icar...79...47H. doi:10.1016/0019-1035(89)90107-3.