| Melting point: |
−123 °C(lit.) |
| Boiling point: |
6 °C(lit.) |
| Density |
0.8665 |
| vapor density |
1.66 (vs air) |
| vapor pressure |
1536 mm Hg ( 20 °C) |
| FEMA |
2716 | METHYL MERCAPTAN |
| refractive index |
1.4020 (estimate) |
| Flash point: |
<71℃ |
| solubility |
Soluble in alcohol, ether (Weast, 1986), and petroleum naphtha (Hawley, 1981) |
| form |
liquid |
| pka |
10.3(at 25℃) |
| Odor |
at 0.01 % in propylene glycol. decomposing cabbage garlic |
| Odor Type |
sulfurous |
| explosive limit |
21.8% |
| Odor Threshold |
0.00007ppm |
| Water Solubility |
23.30 g/L at 20 °C (quoted, Windholz et al., 1983)
0.330 mol/L at 25 °C (Hine and Weimar, 1965) |
| JECFA Number |
508 |
| Merck |
13,5983 |
| BRN |
1696840 |
| Henry's Law Constant |
3.03 (Hine and Weimar, 1965) |
| Exposure limits |
TLV-TWA 0.5 ppm (～1.0 mg/m3 ) (ACGIH
and MSHA); ceiling 10 ppm (OSHA); IDLH
400 ppm (NIOSH); the revised IDLH is 150
ppm in analogy to H2S. |
| Stability: |
Stable. Highly flammable - note low flash point. Reacts vigorously or explosively with a wide variety of materials - consult a full MSDS data sheet before using. Incompatible with strong oxidizing agents, alkali and alkaline earth metals, epoxides, hydrazines, ketones, lead, mercury (II) oxide, azo- and diazo- compounds, copp |
| LogP |
0.72 |
| CAS DataBase Reference |
74-93-1(CAS DataBase Reference) |
| EPA Substance Registry System |
Methyl mercaptan (74-93-1) |