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1.09731

Supelco

Tetrahydrofuran

for analysis EMSURE® ACS,Reag. Ph Eur

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

grade

ACS reagent

Quality Level

Agency

reag. Ph. Eur.

vapor density

2.5 (vs air)

vapor pressure

114 mmHg ( 15 °C)
143 mmHg ( 20 °C)

product line

EMSURE®

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)
≤0.03% Water

evapn. residue

≤0.0005%

color

clearAPHA: ≤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.)

cation traces

Al: ≤0.00005%
B: ≤0.000002%
Ba: ≤0.00001%
Ca: ≤0.00005%
Cd: ≤0.000005%
Co: ≤0.000002%
Cr: ≤0.000002%
Cu: ≤0.000002%
Fe: ≤0.00001%
Mg: ≤0.000002%
Mn: ≤0.000002%
Ni: ≤0.000002%
Pb: ≤0.00001%
Sn: ≤0.00001%
Zn: ≤0.00001%

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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This Item
PHR1561784451.08101
Tetrahydrofuran for analysis EMSURE® ACS,Reag. Ph Eur

1.09731

Tetrahydrofuran

Tetrahydrofuran Pharmaceutical Secondary Standard; Certified Reference Material

PHR1561

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Tetrahydrofuran analytical standard

78445

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Tetrahydrofuran for liquid chromatography LiChrosolv®

1.08101

Tetrahydrofuran

Quality Level

300

Quality Level

300

Quality Level

100

Quality Level

100

assay

≥99.8% (GC)

assay

-

assay

≥99.9% (GC)

assay

≥99.9% (GC)

form

liquid

form

-

form

-

form

liquid

vapor density

2.5 (vs air)

vapor density

2.5 (vs air)

vapor density

2.5 (vs air)

vapor density

2.5 (vs air)

mp

−108 °C (lit.)

mp

−108 °C (lit.)

mp

−108 °C (lit.)

mp

−108 °C (lit.)

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


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