676764

Tetrahydrofuran

≥99.0%, ACS reagent, contains 200-400 ppm BHT as inhibitor, suitable for HPLC

• Synonym(e): Butylenoxid, Oxolan, Tetramethylenoxid
• Empirische Formel (Hill-System): C₄H₈O
• CAS-Nummer: 109-99-9
• Molekulargewicht: 72.11
• Beilstein: 102391
• EG-Nummer: 203-726-8
• MDL-Nummer: MFCD00005356
• UNSPSC-Code: 12191501
• PubChem Substanz-ID: 329760651
• NACRES: NA.07
• bp: 65-67 °C (lit.)

Eigenschaften

• Produktbezeichnung: Tetrahydrofuran, ACS reagent, ≥99.0%, contains 200-400 ppm BHT as inhibitor
• Qualität: ACS reagent
• Qualitätsniveau: 200
• Dampfdichte: 2.5 (vs air)
• Dampfdruck: 114 mmHg ( 15 °C); 143 mmHg ( 20 °C)
• Assay: ≥99.0%
• Form: liquid
• Selbstzündungstemp.: 610 °F
• Enthält: 200-400 ppm BHT as inhibitor
• Expl.-Gr.: 1.8-11.8 %
• Methode(n): HPLC: suitable
• Verunreinigungen: ≤0.015% peroxide (as H₂O₂); ≤0.05% water
• Abdampfrückstand: ≤0.03%
• Farbe: APHA: ≤20
• Brechungsindex: n20/D 1.407 (lit.)
• pH-Wert: ~7
• bp: 65-67 °C (lit.)
• mp (Schmelzpunkt): −108 °C (lit.)
• Dichte: 0.889 g/mL at 25 °C (lit.)
• SMILES String: C1CCOC1
• InChI: 1S/C4H8O/c1-2-4-5-3-1/h1-4H2
• InChIKey: WYURNTSHIVDZCO-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Tetrahydrofuran (THF) is a heterocyclic compound (cyclic ether). It is colorless, has low viscosity, and good solubility in a wide range of solvents. It is widely used as a solvent in organic synthesis, being very popular in reactions with organometallic compounds and Grignard reagents. Due to organic peroxides formation on long term storage, THF is usually stabilized by adding butylated hydroxytoluene (BHT). BHT removes the free radicals required for the peroxide formation.

Anwendung

Tetrahydrofuran (THF) is used as a solvent in the following processes:

• Organic synthesis

a) Grignard
b) Organometallic compounds
c) Reformatsky
d) Lithiation
e) Hydride reduction
f) Metal-catalyzed coupling (Heck, Stile, Suzuki)
g) Lewis acid mediated reactions

• Crystallization
• Polymerization. Ex. RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization of p-acetoxystyrene
• Coatings
• As an O-donor ligand to form coordination complexes
• As mobile phase solvent in high-performance liquid chromatography

Leistungsmerkmale und Vorteile

ACS solvents meet or exceed the high standards of the American Chemical Society (ACS) ,with test specifications that are specialized to every compound. According to the American Chemical Society, ACS reagent grade implies that it is a substance of sufficient purity to be used in most chemical analyses or reactions.

Sonstige Hinweise

Go to our Greener Alternative-2-Methyl Tetrahydrofuran - 155810

Go to our Greener Alternative-Cyclopentyl methylether - 675989

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS07
• Signalwort: Danger
• H-Sätze: H225,H302,H319,H335,H336,H351
• P-Sätze: P202 - P210 - P233 - P301 + P312 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Zusätzliche Gefahrenhinweise: EUH019
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): -6.2 °F - closed cup
• Flammpunkt (°C): -21.2 °C - closed cup