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Merck
CN

88965

Sulfolane

analytical standard

Synonym(s):

Tetrahydrothiophene 1,1-dioxide, Tetramethylene sulfone

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About This Item

Empirical Formula (Hill Notation):
C4H8O2S
CAS Number:
126-33-0
Molecular Weight:
120.17
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329769680
EC Number:
204-783-1
Beilstein/REAXYS Number:
107765
MDL number:
MFCD00005484

Key Documents

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Product Name

Sulfolane, analytical standard

InChI key

HXJUTPCZVOIRIF-UHFFFAOYSA-N

InChI

1S/C4H8O2S/c5-7(6)3-1-2-4-7/h1-4H2

SMILES string

O=S1(=O)CCCC1

grade

analytical standard

vapor density

4.2 (vs air)

vapor pressure

0.01 mmHg ( 20 °C)

assay

≥99.8% (GC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.484 (lit.)
n20/D 1.485

bp

104 °C/0.2 mmHg (lit.)
285 °C (lit.)

mp

20-26 °C (lit.)

density

1.261 g/mL at 25 °C (lit.)

application(s)

environmental

format

neat

Quality Level

100

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Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Sulfolane may be used as an analytical reference standard for the quantification of the analyte in groundwater samples using gas chromatography-mass spectrometry technique.

General description

Sulfolane is an aprotic polar solvent, used in the separation of aromatic hydrocarbons from aliphatic hydrocarbons.
Sulfolane is widely used in combination with diisopropanolamine in the sulfinol process of removal of toxic levels of hydrogen sulfide and carbonyl sulfide from raw natural gas condensate. It is also used as an industrial solvent for photographic chemicals, polymer, and petrochemical industries.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 1

flash_point_f

350.6 °F - closed cup

flash_point_c

177 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM8442
BCCL9280
BCCK2884
BCCF1409
BCCB2093

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Industrial Solvents Handbook, Revised And Expanded (2003)
Thermochemical conversion of cellulose in polar solvent (sulfolane) into levoglucosan and other low molecular-weight substances
Kawamoto.H, et al.
Journal of Analytical and Applied Pyrolysis, 70, 303-313 (2003)
D V Kosynkin et al.
Organic letters, 3(7), 993-995 (2001-03-30)
[reaction: see text]. Functionalized diazonium salts for molecular electronic devices are prepared by the reaction of the corresponding anilines with NOBF4 in sulfolane-acetonitrile solvent.
J V Headley et al.
Journal of chromatography. A, 859(1), 69-75 (1999-11-24)
Described is a GC-MS method for the determination of the levels of sulfolane (tetrahydrothiophene 1,1-dioxide, C4H8O2S; a water miscible chemical used in the sweetening of sour gas) in wetland vegetation (roots, shoots, berries, seeds, grasses, and leaves). The technique was
Yu Huang et al.
Analytical chemistry, 83(21), 8222-8229 (2011-09-20)
Microfluidic chip-based hydrophilic interaction chromatography (HILIC) is a useful separation system for liquid chromatography-mass spectrometry (LC-MS) in compositional profiling of heparan sulfate (HS) oligosaccharides; however, ions observed using HILIC LC-MS are low in charge. Tandem MS of HS oligosaccharide ions
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