20256

tert-Butylmethylether

puriss. p.a., ≥99.5% (GC)

• Synonym(e): MTBE, Methyl-tert.-butylether
• Lineare Formel: (CH₃)₃COCH₃
• CAS-Nummer: 1634-04-4
• Molekulargewicht: 88.15
• Beilstein: 1730942
• EG-Nummer: 216-653-1
• MDL-Nummer: MFCD00008812
• UNSPSC-Code: 12352112
• PubChem Substanz-ID: 329751997
• NACRES: NA.07
• bp: 55-56 °C (lit.)

Eigenschaften

• Dampfdichte: 3.1 (vs air)
• Qualitätsniveau: 100
• Dampfdruck: 4.05 psi
• Qualität: puriss. p.a.
• Assay: ≥99.5% (GC)
• Form: liquid
• Selbstzündungstemp.: 705 °F
• Expl.-Gr.: 15.1 %
• Methode(n): GC/GC: suitable
• Verunreinigungen: ≤0.0005% peroxides (as H₂O₂); ≤0.005% free acid (as CH₃COOH); ≤0.05% water
• Abdampfrückstand: ≤0.005%
• Brechungsindex: n20/D 1.362-1.376; n20/D 1.369 (lit.)
• bp: 55-56 °C (lit.)
• mp (Schmelzpunkt): -110 °C
• Dichte: 0.736-0.744 g/mL at 20 °C; 0.74 g/mL at 25 °C (lit.)
• Kationenspuren: Al: ≤0.5 mg/kg; Ba: ≤0.1 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.02 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.1 mg/kg; K: ≤0.5 mg/kg; Li: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Mo: ≤0.1 mg/kg; Na: ≤0.5 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.1 mg/kg; Sr: ≤0.1 mg/kg; Zn: ≤0.1 mg/kg
• SMILES String: COC(C)(C)C
• InChI: 1S/C5H12O/c1-5(2,3)6-4/h1-4H3
• InChIKey: BZLVMXJERCGZMT-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

tert-Butyl methyl ether (TBME) TBME is a common organic solvent used in the Grignard reaction as an alternative to tetrahydrofuran. TBME has been reported to be a butylating agent for active aromatic systems. TBME is also used to facilitate tert-butyl esterification under microwave conditions.

Anwendung

tert-Butyl methyl ether is used as a solvent:

• In the synthesis of acyl azides.
• In the production of biodiesel.

Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Danger
• H-Sätze: H225,H315
• P-Sätze: P210 - P233 - P240 - P241 - P242 - P303 + P361 + P353
• Gefahreneinstufungen: Flam. Liq. 2 - Skin Irrit. 2
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): -18.4 °F - closed cup
• Flammpunkt (°C): -28 °C - closed cup