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1.09731

Supelco

Tetrahydrofuran

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym(s):
Tetramethylene oxide, Oxolane, THF, Tetramethylene oxide, Oxolane, Butylene oxide, Butylene oxide
Empirical Formula (Hill Notation):
C4H8O
CAS Number:
Molecular Weight:
72.11
Beilstein:
102391
MDL number:
EC Index Number:
203-726-8

Quality Level

grade

ACS reagent

agency

reag. Ph. Eur.

vapor density

2.5 (vs air)

vapor pressure

114 mmHg ( 15 °C)
143 mmHg ( 20 °C)

assay

≥99.8% (GC)

form

liquid

autoignition temp.

610 °F

expl. lim.

1.8-11.8 %

impurities

≤0.00005% Al (Aluminium)
≤0.0002 meq/g Alkalinity
≤0.0003 meq/g Acidity
≤0.005% Peroxide (as H2O2)

evapn. residue

≤0.0005%

color

APHA: ≤10

refractive index

n20/D 1.407 (lit.)

pH

7-8 (20 °C, 200 g/L in H2O)

bp

65-67 °C (lit.)

mp

−108 °C (lit.)

transition temp

flash point -21.5 °C

density

0.889 g/mL at 25 °C (lit.)

storage temp.

2-30°C

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

EMSURE grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE provides worldwide best and most extensive product specifications. We declare our EMSURE range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.

Analysis Note

Purity (GC): ≥ 99.8 %
Identity (IR): conforms
Appearance: clear
Color: ≤ 10 Hazen
Density (d 20 °C/20 °C): 0.885 - 0.895
Acidity: ≤ 0.0003 meq/g
Alkalinity: ≤ 0.0002 meq/g
Peroxides: conforms
Peroxide (as H₂O₂): ≤ 0.005 %
Al (Aluminium): ≤ 0.00005 %
B (Boron): ≤ 0.000002 %
Ba (Barium): ≤ 0.00001 %
Ca (Calcium): ≤ 0.00005 %
Cd (Cadmium): ≤ 0.000005 %
Co (Cobalt): ≤ 0.000002 %
Cr (Chromium): ≤ 0.000002 %
Cu (Copper): ≤ 0.000002 %
Fe (Iron): ≤ 0.00001 %
Mg (Magnesium): ≤ 0.000002 %
Mn (Manganese): ≤ 0.000002 %
Ni (Nickel): ≤ 0.000002 %
Pb (Lead): ≤ 0.00001 %
Sn (Tin): ≤ 0.00001 %
Zn (Zinc): ≤ 0.00001 %
Evaporation residue: ≤ 0.0005 %
Water: ≤ 0.03 %
Stabilized with 2,6-Di-tert-butyl-4-methylphenol (BHT).

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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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