Dimethyl Sulfide — properties & hazards overview
Boiling point
≈ 37 °C
Flash point
−36 °C (CC)
Vapour density
2.1 (air = 1)
Water solubility
Slightly soluble
Flammability
Highly flammable vapor
Toxicity
Irritant / CNS effects
Odour impact
ppb-level detectable
Environmental
Volatile sulfur compound
| Property | Value / Note |
|---|---|
| Physical state | Colorless, volatile liquid with characteristic sulfur odor; vapor heavier than air. |
| Density (20 °C) | ≈ 0.85 g/cm³ |
| Odour threshold | ≈ 0.001 ppm — extremely low; odor nuisance at trace levels. |
| Decomposition products | SO₂, H₂S and CO on combustion / oxidation. |
| Typical sources | Pulp & paper, petrochemical streams, biogas desulfurization, thioether manufacture, anaerobic digestion. |
| Typical analytical detection | FTIR: excellent selectivity for S–C stretch; FID: after oxidation to SO₂ or total hydrocarbon measure; NDIR: possible for higher ppm ranges; Sulfur-specific chemiluminescence (SCD) for trace analysis. |
*Indicative data; verify via SDS and measurement standard before process design.