Sulfolane CAS#126-33-0

CAS Number: 126-33-0
Chemical Formula: C4H8O2S
Synonyms:

TETRAHYDROTHIOPHENE 1,1-DIOXIDE
2,3,4,5-TETRAHYDROTHIOPHENE-1,1-DIOXIDE
LABOTEST-BB LT00239038

Appearance: Transperant Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Sulfolane CAS#126-33-0

Sulfolane is a member of the class of tetrahydrothiophenes that is tetrahydrothiophene in which the sulfur has been oxidised to give the corresponding sulfone. A colourless, high-boiling (285℃) liquid that is miscible with both water and hydrocarbons, it is used as an industrial solvent, particularly for the purification of hydrocarbon mixtures by liquid-vapour extraction. It has a role as a polar aprotic solvent. It is a sulfone and a member of tetrahydrothiophenes. It derives from a hydride of a tetrahydrothiophene.

Sulfolane Chemical Properties

Melting point	20-26 °C (lit.)
Boiling point	104 °C/0.2 mmHg (lit.) 285 °C (lit.)
density	1.261 g/mL at 25 °C (lit.)
vapor density	4.2 (vs air)
vapor pressure	0.01 mm Hg ( 20 °C)
refractive index	n20/D 1.484(lit.)
Fp	330 °F
storage temp.	Store below +30°C.
solubility	>=100g/l soluble
form	Liquid After Melting
color	Clear yellow
Water Solubility	soluble
FreezingPoint	26℃
Sensitive	Hygroscopic
Merck	14,8955
BRN	107765
Dielectric constant	44.0
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
InChI	1S/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2
InChIKey	HXJUTPCZVOIRIF-UHFFFAOYSA-N
SMILES	O=S1(=O)CCCC1
LogP	0 at 20℃
Surface tension	47.95 mN/m at 303.15K
CAS DataBase Reference	126-33-0(CAS DataBase Reference)
NIST Chemistry Reference	Thiophene, tetrahydro-, 1,1-dioxide(126-33-0)
EPA Substance Registry System	Sulfolane (126-33-0)

Safety Information

Hazard Codes	Xn
Risk Statements	22
Safety Statements	23-25
WGK Germany	1
RTECS	XN0700000
TSCA	TSCA listed
HS Code	29349990
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
Hazard Classifications	Acute Tox. 4 Oral Repr. 1B
Hazardous Substances Data	126-33-0(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 1.54 ml/kg (Smyth)

Product Application of Sulfolane CAS#126-33-0

Sulfolane is widely used as an industrial solvent, especially in the extraction of aromatic hydrocarbons from hydrocarbon mixtures and to purify natural gas. The first large scale commercial use of sulfolane, the sulfinol process, was first implemented by Shell Oil Company in March 1964 at the Person gas plant near Karnes City, Texas. The sulfinol process purifies natural gas by removing H2S, CO2, COS and mercaptans from natural gas with a mixture of alkanolamine and sulfolane.

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