401757

Sigma-Aldrich

Tetrahydrofuran

anhydrous, ≥99.9%, inhibitor-free

Synonym(s):
Tetramethylene oxide, THF, Oxolane, Butylene oxide
Empirical Formula (Hill Notation):
C4H8O
CAS Number:
Molecular Weight:
72.11
Beilstein/REAXYS Number:
102391
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

anhydrous

vapor density

2.5 (vs air)

vapor pressure

114 mmHg ( 15 °C)
143 mmHg ( 20 °C)

assay

≥99.9%

form

liquid

autoignition temp.

610 °F

expl. lim.

1.8-11.8 %

impurities

≤20 ppm peroxide (as H2O2)
<0.002% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0005%

refractive index

n20/D 1.407 (lit.)

pH

~7

bp

65-67 °C (lit.)

mp

−108 °C (lit.)

solubility

H2O: soluble

density

0.889 g/mL at 25 °C (lit.)

SMILES string

C1CCOC1

InChI

1S/C4H8O/c1-2-4-5-3-1/h1-4H2

InChI key

WYURNTSHIVDZCO-UHFFFAOYSA-N

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General description

Tetrahydrofuran (THF) is a saturated cyclic ether with a potential use as a biofuel. Its combustion studies have been investigated. Reports suggest that it is a better promoter than 1,3 dioxolane for CO2-hydrate formation.

Application

Tetrahydrofuran was used as a solvent in the formation of diacetylinic polymers.
It may be used in the following processes:
  • Formation of butyrolactone (BTL) by green oxidation method.
  • Aqueous THF solution to modify the polystyrene surface by swelling process.
  • As a solvent for lignin depolymerization to isolate phenolic monomer.

Packaging

1, 6×1, 2, 4×2 L in Sure/Seal™
56 L in Pure-Pac™ 1
100, 12×100 mL in Sure/Seal™
200 L in Pure-Pac™ 2
18 L in Pure-Pac™ 1
20, 50 L in Pure-Pac™ 2

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Legal Information

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

signalword

Danger

hazcat

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2

Supp Hazards

EUH019

storage_class_code

3 - Flammable liquids

WGK Germany

WGK 1

Flash Point F

-6.2 °F - closed cup

Flash Point C

-21.2 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Structuring of polystyrene surface via swelling-freezing drying in a binary solvent solution.
Liang S, et al.
Journal of Porous Materials, 22, 859-865 (2015)
1,3 Dioxolane versus tetrahydrofuran as promoters for CO2-hydrate formation: Thermodynamics properties, and kinetics in presence of sodium dodecyl sulfate.
Torre JP, et al.
Chemical Engineering Science, 126, 688-697 (2015)
Novel Diacetylinic Aryloxysilane Polymers: A New Thermally Cross-Linkable High Temperature Polymer System.
Drake K, et al.
Macromolecules, 46(11), 4370-4377 (2013)
Oxidation of tetrahydrofuran to butyrolactone catalyzed by iron-containing clay.
Ausavasukhi A and Sooknoi T.
Green Chemistry, 17(1), 435-441 (2015)
An efficient and economical process for lignin depolymerization in biomass-derived solvent tetrahydrofuran.
Long J, et al.
Bioresource Technology, 154, 10-17 (2014)
Articles
Tandem hydroboration Suzuki Coupling both intermolecular and intramolecular gave diverse alkyl substituted products dppf
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