Tetrahydrothiophene
CAS Number: 110-01-0
Chemical Formula: C4H8S
Synonyms:
TETRAHYDROTHIOPHENE
TETRAHYDROTHIOPHEN 99%(GC)
thiophane
Appearance: Colorless liquid
HS Code: 29349990
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Tetrahydrothiophene CAS#：110-01-0
Tetrahydrothiophene is a cyclic thioalkane, serving as the saturated counterpart of thiophene. It appears as a colorless, transparent, and volatile liquid—insoluble in water but miscible with ethanol, ether, benzene, and acetone.Notably, it emits a strong, unpleasant odor that is stable and not easily dissipated, detectable in air at a concentration as low as 0.01 ppm. It exhibits no corrosiveness to gas equipment, transportation pipeline gaskets, or similar materials, nor does it cause habitual desensitization of the human sense of smell.For these reasons, it is widely used as an odorant in liquefied petroleum gas (LPG) and natural gas, replacing the previously employed odorizing agents such as ethyl mercaptan.
Tetrahydrothiophene Chemical Parameters
| Melting point | -96 °C (lit.) |
| Boiling point | 119 °C (lit.) |
| density | 1 g/mL at 25 °C (lit.) |
| vapor pressure | 18 mm Hg ( 25 °C) |
| refractive index | n |
| Fp | 55 °F |
| storage temp. | Store below +30°C. |
| solubility | immiscible |
| form | liquid |
| Specific Gravity | 1.002 (20/4℃) |
| color | Colorless to Almost colorless |
| Odor | Smells of rotting eggs |
| PH | 7 (H2O, 20℃) |
| explosive limit | 1.1-12.1%(V) |
| Odor Threshold | 0.00062ppm |
| Odor Type | sulfurous |
| Water Solubility | immiscible |
| Merck | 14,9218 |
| BRN | 102392 |
| Dielectric constant | 8.6099999999999994 |
| Stability: | Highly flammable. Vapour-air mixtures explosive in some proportions; note low flash point and fairly wide explosion limit range. Heavier than air, so potentially explosive mixtures may travel considerable distances to source of ignition. |
| LogP | 1.8 at 20℃ |
| CAS DataBase Reference | 110-01-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Thiophene, tetrahydro-(110-01-0) |
| EPA Substance Registry System | Tetrahydrothiophene (110-01-0) |
Safety Information
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/21/22-36/38-52/53 |
| Safety Statements | 16-23-36/37-61 |
| RIDADR | UN 2412 3/PG 2 |
| WGK Germany | 2 |
| RTECS | XN0370000 |
| Autoignition Temperature | 202 °C |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29349990 |
| Hazardous Substances Data | 110-01-0(Hazardous Substances Data) |
| Toxicity | LD50 by inhalation in mice: 26.7 mg/l (Carlucci) |
Tetrahydrothiophene CAS#：110-01-0 Application
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