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1.09731 Supelco

Tetrahydrofuran

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym: Butylene oxide, Oxolane, THF, Tetramethylene oxide, Oxolane, Butylene oxide, Tetramethylene oxide

  • CAS Number 109-99-9

  • Empirical Formula (Hill Notation) C4H8O

  • Molecular Weight 72.11

  •  Beilstein/REAXYS Number 102391

  •  MDL number MFCD00005356

  •  EC Index Number 203-726-8

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Properties

Quality Level   300
grade   ACS reagent
  Reag. Ph. Eur.
vapor density   2.5 (vs air)
vapor pressure   114 mmHg ( 15 °C)
  143 mmHg ( 20 °C)
autoignition temp.   610 °F
expl. lim.   1.8-11.8 %
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.)
SMILES string   C1CCOC1
InChI   1S/C4H8O/c1-2-4-5-3-1/h1-4H2
InChI key   WYURNTSHIVDZCO-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

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

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Supplemental Hazard Statements 
EUH018 - EUH019
WGK Germany 
WGK 1
Flash Point(F) 
-6.2 °F - closed cup
Flash Point(C) 
-21.2 °C - closed cup
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