tert-Butyl methyl ether
SIGALD/650560 - HPLC Plus, for HPLC, GC, and residue analysis, 99.9%
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
| λ | H2O reference |
| application(s) | PFAS testing food and beverages |
| assay | 99.9% |
| autoignition temp. | 705 °F |
| bp | 55-56 °C (lit.) |
| density | 0.74 g/mL at 25 °C (lit.) |
| evapn. residue | ≤0.0001% |
| expl. lim. | 15.1 % |
| form | liquid |
| grade | HPLC Plus |
| halogenated residue | ≤10 ng/L (as heptachlor epoxide) |
| impurities | ≤0.02% water |
| <1.0 ppb Fluorescence (quinine) at 365 nm | |
| InChI | 1S/C5H12O/c1-5(2,3)6-4/h1 |
| InChI key | BZLVMXJERCGZMT-UHFFFAOYSA |
| mp | -110 °C |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | COC(C)(C)C |
| suitability | suitable for residue analysis |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable | |
| UV absorption | λ: 210 nm Amax: 1.0 |
| λ: 225 nm Amax: 0.50 | |
| λ: 250 nm Amax: 0.10 | |
| λ: 300-400 nm Amax: 0.005 | |
| vapor density | 3.1 (vs air) |
| vapor pressure | 4.05 psi |
| Application: | Suitable for HPLC, spectrophotometry, environmental testing |
| General description: | tert-Butyl methyl ether is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetics of its heat-assisted persulfate oxidation has been investigated at various pH, temperature, oxidant concentration and ionic strength levels. Its biodegradation followed a pseudo-first-order decay model and its pseudo-first-order rate constants were evaluated. MTBE can be synthesized by acid catalyzed reaction between methanol and isobutene. A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by stopped-flow method. |
| Legal Information: | Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Other Notes: | Discover LiChropur reagents ideal for HPLC or LC-MS analysis |
| Other Notes: | Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723. |
| Packaging: | 1, 6×1, 4, 4×4 L in glass bottle |
| Packaging: | 50 L in Pure-Pac™ 2 |
| Packaging: | 56 L in Pure-Pac™ 1 |
| Packaging: | M-Bottle for Solvents As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before. See all the new features here! ![]() |
| 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 | 99.9% |
| bp | 55-56 °C (lit.) |
| mp | -110 °C |
| Density | 0.74 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12190000 |



