Methyl tert-butyl ether (MTBE) with CAS number 1634-04-4 is a high-purity ether widely recognized for its strategic value in petrochemical and polymer manufacturing sectors. This compound, offered in industrial and pharmaceutical grades and kept available in stock, serves as a vital component for those requiring a reliable oxygenate and solvent for advanced chemical production processes. It is ideally suited for bulk applications in the continuous synthesis of specialty chemicals, polymer intermediates, and high-value petrochemical derivatives.
As a chemical entity, methyl tert-butyl ether consists of four main elements reflected in its molecular formula C5H12O, corresponding to a molecular weight of 88.15 g/mol. Structurally, it includes both methyl and tert-butyl functional groups connected via an ether linkage, conferring significant electron density and chemical stability. Not only is MTBE notably hydrophobic, with a log P value around 1.06, but its low water miscibility and high volatility make it highly reactive under controlled catalytic conditions. The presence of the ether group enhances its utility in various alkylation and isomerization processes essential to the production of refined fuel components and specialty monomers. Its moderately high boiling point of 55.2°C, melting point of -109°C, and density of 0.74 g/cm³ further contribute to its prominence as a preferred solvent and feedstock in continuous-flow and batch reactors. The compound is supplied at ≥99.8% assay purity with water content strictly controlled below 0.05%, ensuring minimal interference in sensitive polymerization or fuel blending operations. With a flash point of -28°C, special handling precautions are necessary to maintain operational safety and quality.
MTBE’s principal industrial role lies in its application as a fuel oxygenate, where it enhances the octane number and improves combustion efficiency in gasoline. This makes it an essential additive for the reformulation of fuels meeting modern environmental and performance standards. Beyond its role in the petroleum industry, methyl tert-butyl ether is widely utilized as an extraction solvent and reaction medium in the synthesis of fine chemicals, including pharmaceutical intermediates and specialty polymers. In the context of polymer production, it provides efficient solvation and facilitates controlled radical polymerizations crucial for producing materials with defined microstructure and molecular weight distributions. Other significant applications include serving as an anti-knock agent in motor fuel blending, a solvent in pharmaceutical synthesis for flow chemistry and scalable continuous manufacturing, and a medium for selective isomerization reactions in modern petrochemical plants. Its favorable physicochemical profile makes it a preferred choice for industries implementing advanced, high-throughput manufacturing technologies.
The compound is distributed in secure 25-kilogram high-density polyethylene (HDPE) drums designed with a nitrogen-purged headspace to maintain chemical integrity and prevent oxidative degradation. For maximum shelf stability, methyl tert-butyl ether should be stored in a cool, well-ventilated facility, away from inadvertent sources of ignition or strong oxidizing agents. Under recommended storage conditions, the product demonstrates a shelf life in excess of 24 months. Comprehensive Certificates of Analysis (COA) and batch-specific technical documentation are provided to support quality control and compliance for all industrial and pharmaceutical users.
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