Butane-1-thiol
 | |
 | |
 | |
| Names | |
|---|---|
| Preferred IUPAC name
Butane-1-thiol | |
| Other names
Butyl mercaptan
n-Butyl mercaptan Thiobutyl alcohol Mercaptobutane n-Butanethiol 1-Mercaptobutane | |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
| ECHA InfoCard | Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value). |
| E number | Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). |
PubChem CID
|
|
| UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
| Properties | |
| C4H10S | |
| Molar mass | 90.18 g·mol−1 |
| Appearance | colorless liquid |
| Odor | cabbage-like, skunk-like, garlic-like[2] |
| Density | 0.83679 g/mL |
| Melting point | −115.8 °C (−176.4 °F; 157.3 K) |
| Boiling point | 98.2 °C (208.8 °F; 371.3 K) |
| Slightly soluble (0.06% at 20°C)[2] | |
| Vapor pressure | 35 mmHg (20°C)[2] |
| Hazards | |
| NFPA 704 (fire diamond) | |
| Flash point | 2 °C; 35 °F; 275 K[2] |
| Lethal dose or concentration (LD, LC): | |
LC50 (median concentration)
|
4020 ppm (rat, 4 hr) 2500 ppm (mouse, 4 hr) 770 ppm (dog, 30 min)[3] |
| NIOSH (US health exposure limits): | |
PEL (Permissible)
|
TWA 10 ppm (35 mg/m3)[2] |
REL (Recommended)
|
C 0.5 ppm (1.8 mg/m3) [15-minute][2] |
IDLH (Immediate danger)
|
500 ppm[2] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Butane-1-thiol, also known as butyl mercaptan, is an organosulfur compound with the formula CH3CH2CH2CH2SH. It is classified as a thiol. It is a volatile, colorless liquid with a fetid (extremely foul-smelling) odor, commonly described as "skunk" odor. In fact, 1-butanethiol is structurally similar to several constituents of a skunk's defensive spray but is not present in the spray.[4] The scent of 1-butanethiol is so strong that the human nose can easily detect it in the air at concentrations as low as 10 parts per billion. The threshold level for 1-butanethiol is reported as 1.4 ppb[5]
Uses
[edit | edit source]Butane-1-thiol is used as an industrial solvent,[citation needed] and as an intermediate for cotton defoliants.[6] It is sometimes placed in "stink bombs" and "stink perfumes" for pranksters.
Safety
[edit | edit source]Inhalation may cause weakness, confusion, cough, dizziness, drowsiness, headache, nausea, vomiting, and shortness of breath. The substance irritates the eyes, the skin, and the respiratory tract. It may cause effects on the thyroid and the nervous system and could cause lowering of consciousness.[7]
See also
[edit | edit source]- tert-Butylthiol (tert-butyl mercaptan)
Notes
[edit | edit source]- ^ Merck Index, 12th Edition, 1611.
- ^ a b c d e f g Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
References
[edit | edit source]- U.S. Department of Labor Archived 2017-09-30 at the Wayback Machine
- The Good Scents Company
- HazMap