About Methyl Tertiary Butyl Ether
Methyl Tertiary Butyl Ether
CAS No. : 1634-04-4
Molecular Formula : C5H12O
Molecular Weight : 88.15 g/mol
Appearance : Colorless Liquid
Melting Point : -109 C
Boiling Point @ 760mm Hg 55 C (131F)
Freezing Point : -109C (-164 F)
Flash Point Closed Cup : -10C (14 F)
Autoignition Temperature : 374 C (705 F)
Specific Gravity @ 25/25C : 0.74
Density (kg/m3, 20 C) : 740.6
Packaging Detail : 25/50 kg Drum. Key Properties and ApplicationsMTBE boasts a boiling point of 55.2 C and vapor pressure of 245 mmHg at 20 C, enabling efficient blending into gasoline to elevate its octane rating. Its main application is as a fuel additive, but it is also valued as a solvent and as an intermediate in producing isobutene. This versatility is complemented by its high purity and compatibility with most hydrocarbons and organic solvents.
Safe Handling and StabilityThe product remains stable under normal conditions and is generally supplied in steel drums or ISO tanks. Although it is colorless and odorless, MTBE is classified as poisonous, with harmful effects if inhaled, ingested, or absorbed through the skin. Proper storage, handling, and adherence to safety protocols are crucial for safe use. The recommended shelf life is 24 months when stored appropriately.
Environmental ConsiderationsWhile MTBE efficiently boosts fuel performance, its impact on the environment is significant. The compound is not readily biodegradable and remains persistent in groundwater, necessitating responsible disposal and monitoring. Environmental safety guidelines must be followed to limit potential contamination and mitigate long-term ecological risks.
FAQs of Methyl Tertiary Butyl Ether:
Q: How is Methyl Tertiary Butyl Ether (MTBE) commonly used in the petrochemical industry?
A: MTBE is primarily used as a fuel additive to increase the octane number in gasoline blends. It also serves as a solvent and as a precursor in the manufacture of isobutene, making it a versatile component for various industrial and chemical processes.
Q: What safety precautions should be taken when handling MTBE?
A: Due to its toxic nature, MTBE should be handled in well-ventilated areas using appropriate personal protective equipment, such as gloves and eye protection. Avoid inhalation, ingestion, or skin absorption and store in secure tanks or drums away from ignition sources.
Q: When does MTBE require disposal and what are the environmental concerns associated with it?
A: MTBE disposal is required when the product surpasses its shelf life of 24 months or is contaminated. It is persistent in groundwater and not readily biodegradable, so disposal should follow strict environmental regulations to prevent contamination and ecological impact.
Q: Where is MTBE typically supplied and what packaging options are available?
A: MTBE is distributed globally and, in India, it is commonly supplied by manufacturers, exporters, and wholesalers in steel drums, ISO tanks, or bulk packaging, depending on customer requirements and regulatory standards.
Q: What are the benefits of using MTBE in fuel blending?
A: The addition of MTBE to gasoline raises its octane rating, resulting in improved engine performance and reduced knocking. This ensures efficient combustion, supporting modern fuel standards and regulations.
Q: Is MTBE miscible with water and other solvents, and how does this affect its application?
A: MTBE is slightly soluble in water but fully miscible with most hydrocarbons and organic solvents, which enables its effective incorporation into fuel blends and other chemical mixtures without phase separation.