tert-Butyl methyl ether
SIGALD/20256 - puriss. p.a., ≥99.5% (GC)
Synonym: MTBE; Methyl tert-butyl ether
CAS Number: 1634-04-4
Empirical Formula (Hill Notation): C5H12O
Molecular Weight: 88.15
EC Number: 216-653-1
MDL Number: MFCD00008812
Linear Formula: (CH3)3COCH3
Product Type: Chemical
| assay | ≥99.5% (GC) |
| autoignition temp. | 705 °F |
| bp | 55-56 °C (lit.) |
| cation traces | 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 | |
| density | 0.736-0.744 g/mL at 20 °C |
| 0.74 g/mL at 25 °C (lit.) | |
| evapn. residue | ≤0.005% |
| expl. lim. | 15.1 % |
| form | liquid |
| grade | puriss. p.a. |
| impurities | ≤0.0005% peroxides (as H2O2) |
| ≤0.005% free acid (as CH3COOH) | |
| ≤0.05% water | |
| InChI | 1S/C5H12O/c1-5(2,3)6-4/h1 |
| InChI key | BZLVMXJERCGZMT-UHFFFAOYSA |
| mp | -110 °C |
| Quality Level | 100  |
| refractive index | n |
| n |
|
| SMILES string | COC(C)(C)C |
| technique(s) | GC/GC: suitable |
| vapor density | 3.1 (vs air) |
| vapor pressure | 4.05 psi |
| Application: | tert-Butyl methyl ether is used as a solvent: • In the synthesis of acyl azides. • In the production of biodiesel. |
| General description: | 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. |
| Symbol |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H315 |
| Precautionary statements | P210 - P233 - P240 - P241 - P242 - P303 + P361 + P353 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-38 |
| Safety Statements | 9-16-24 |
| RIDADR | UN 2398 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | -18.4 °F - closed cup |
| Flash Point(C) | -28 °C - closed cup |
| Purity | ≥99.5% (GC) |
| bp | 55-56 °C (lit.) |
| mp | -110 °C |
| Density | 0.736-0.744 g/mL at 20 °C; 0.74 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352112 |