What is methyl tert-butyl ether CAS 1634-04-4 ?
Methyl tert-butyl ether, also known as methyl tertiary butyl ether and MTBE, is an organic compound. MTBE is a volatile, flammable, and colourless liquid that is immiscible with water.
MTBE is manufactured via the chemical reaction of methanol and isobutylene. Methanol is derived from natural gas, and isobutylene is derived from butane obtained from Crude Oil or natural gas, thus MTBE is derived from fossil fuels.
| Melting point | -110 °C |
| Boiling point | 55-56 °C(lit.) |
| density | 0.7404 |
| vapor density | 3.1 (vs air) |
| vapor pressure | 4.05 psi ( 20 °C) |
| refractive index | n20/D 1.369(lit.) |
| Fp | -27 °F |
| storage temp. | −20°C |
| solubility | 42g/l |
| form | Liquid |
| Specific Gravity | 0.740 |
| color | APHA: ≤10 |
| Relative polarity | 0.124 |
| Odor | Characteristic ethereal odor |
Click here to view more: Chemicals Raw Materials Methyl Tert-butyl Ether (MTBE) Solvent CAS 1634-04-4
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What is MTBE used for?
- Gasoline Additives: Historically, the primary use has been as fuel additives to enhance gasoline octane ratings, enabling smoother engine operation.
- Oxygenated Additives: Methyl Tert-butyl Ether is used to introduce oxygen into gasoline, promoting more complete combustion and reducing vehicle emissions of carbon monoxide and other pollutants.
- Chemical Solvent: Beyond fuel applications, MTBE serves as a solvent in pharmaceutical manufacturing and chemical reactions due to its ability to dissolve various organic compounds.
- Extraction Agent: Its low water solubility and low boiling point facilitate separation from other compounds, making it suitable for laboratory use.

where to Buy MTBE CAS 1634-04-4 ?
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