1.09731

Tetrahydrofuran

≥99.8% (GC), ACS reagent, reag. Ph. Eur., EMSURE^®

• Synonym(s): THF, Tetramethylene oxide, Oxolane, Butylene oxide, Butylene oxide, Oxolane, Tetramethylene oxide
• Empirical Formula (Hill Notation): C₄H₈O
• CAS Number: 109-99-9
• Molecular Weight: 72.11
• Beilstein: 102391
• MDL number: MFCD00005356
• UNSPSC Code: 12191504
• EC Index Number: 203-726-8
• NACRES: NB.21

Properties

• product name: Tetrahydrofuran, for analysis EMSURE^® ACS,Reag. Ph Eur
• grade: ACS reagent
• Quality Level: 300
• 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

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.

Application

• Construction of Polycarbonates with Pendant Multifunctional Groups via a One-Step CO₂/Diepoxide Copolymerization Approach.: This study employs tetrahydrofuran (THF) as a solvent in the synthesis of multifunctional polycarbonates through CO₂ copolymerization, demonstrating its utility in creating advanced materials with potential applications in environmental sustainability and polymer chemistry (Wu et al., 2024).

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 Information

• Pictograms: GHS02,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H302,H319,H335,H336,H351
• Precautionary Statements: P202 - P210 - P233 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Target Organs: Central nervous system, Respiratory system
• Supplementary Hazards: EUH019
• 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