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Tetrahydrothiophene CAS#110-01-0

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Chemical Name：Tetrahydrothiophene

CAS No.: 110-01-0

Molecular Formula：C4H8S

Molecular weight:88.17

Sample: Available

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Product Details

Products Description of Tetrahydrothiophene CAS#110-01-0

Tetrahydrothiophene (abbreviated as THT), also known as thiolane, tetramethylene sulfide, butyl sulfide, tetrahydrothiophene, is a sulfur-containing saturated heterocyclic compound obtained by catalytic hydrogenation of thiophene. After thiophene is reduced to tetrahydrothiophene, it no longer has a conjugated system and aromaticity. Therefore, tetrahydrothiophene shows the properties of general sulfides and is easily oxidized to sulfoxides and sulfones (cyclopentane sulfone). Tetrahydrothiophene is a colorless, transparent, volatile liquid that is insoluble in water and miscible in ethanol, ether, benzene, and acetone. It has a strong unpleasant odor. The odor it produces is stable and not easy to dissipate. It can be smelled when it exists in the air at 0.01 PPm. It is not corrosive to materials such as gas equipment and transportation pipeline gaskets, and does not produce habitual passivation to the human sense of smell. Therefore, it is used as a leakage warning agent for gas fuels such as city gas and natural gas. It is added to gas fuels in small quantities to replace the original odorizers such as ethyl mercaptan. At present, the domestic market requires about 400 tons of tetrahydrothiophene per year, which mainly relies on imports. Tetrahydrothiophene has an anesthetic effect. When mice inhale poisoning, they experience motor excitement, ataxia, anesthesia, and finally death. In chronic poisoning experiments, mice show abnormal behavior, stagnation of weight gain, and changes in liver function. In addition, it is also used as medicine, pesticide, and organic synthesis raw material.

Tetrahydrothiophene Chemical Properties

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	n20/D 1.504(lit.)
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)

Product Application of Tetrahydrothiophene CAS#110-01-0

It is used as an odorant for fuel gases such as city gas, liquefied petroleum gas, and natural liquefied gas. It can also be used as a raw material for medicine and pesticides.

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