All Photos(1)

900636

Sigma-Aldrich

Tetrahydrofuran

anhydrous, inhibitor-free, ZerO2®, ≥99.9%

Synonym(s):
Degassed and low oxygen tetrahydrofuran, Tetramethylene oxide, Oxolane, Butylene oxide, Tetrahydrofuran ZerO2
Empirical Formula (Hill Notation):
C4H8O
CAS Number:
Molecular Weight:
72.11
Beilstein:
102391
EC Number:
MDL number:

Quality Level

grade

ZerO2®

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

quality

anhydrous

expl. lim.

1.8-11.8 %

impurities

≤0.002% water
water

refractive index

n20/D 1.407 (lit.)

pH

~7

bp

65-67 °C (lit.)

mp

−108 °C (lit.)

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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Application

ZerO2 products are rigorously degassed with highly pure inert gas providing solvents and solutions (anhydrous if specified) with very low residual oxygen content.

Other Notes

Greener alternatives are available for many THF applications, 2-Methyltetrahydrofuran (900520)

Legal Information

ZerO2 is a registered trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-6.2 °F - closed cup

Flash Point(C)

-21.2 °C - closed cup

Certificate of Analysis

Certificate of Origin

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