p-Methylstyrene
Overview
p-Methylstyrene, also known as 4-vinyltoluene, is an organic compound belonging to the styrene family. It is a colorless to pale yellow liquid with a characteristic aromatic odor. The compound is primarily used as a monomer in the production of various polymers and resins. p-Methylstyrene is derived from toluene and is a key intermediate in the chemical industry. Its ability to polymerize makes it valuable in creating copolymers with enhanced properties, such as improved thermal stability and chemical resistance.
Physical and Chemical Properties
p-Methylstyrene is a flammable liquid with a boiling point of 170-172°C and a melting point of -77°C. It has a density of 0.91 g/cm³ and is insoluble in water but soluble in most organic solvents like ethanol and ether. The compound is highly reactive due to the presence of a vinyl group, which makes it susceptible to polymerization. It also exhibits typical aromatic hydrocarbon properties, including stability under normal conditions but reactivity under specific catalysts or initiators.
Main Applications
The primary use of p-Methylstyrene is in the production of polymers and resins. It is copolymerized with other monomers to enhance the properties of the resulting materials, such as increased toughness and heat resistance. Additionally, p-Methylstyrene is used in the synthesis of specialty chemicals, including adhesives, coatings, and rubber modifiers. Its derivatives are also explored in pharmaceuticals and agrochemicals, though these applications are less common.
Safety and Storage
p-Methylstyrene is a flammable liquid and should be stored in a cool, dry place away from heat sources and open flames. Proper ventilation is essential to prevent the accumulation of vapors, which can be harmful if inhaled. Personal protective equipment, including gloves and goggles, should be worn when handling the compound. In case of spills, absorb with inert material and dispose of according to local regulations. Always refer to the material safety data sheet (MSDS) for detailed safety instructions.
B2B Procurement Guide
When procuring p-Methylstyrene, it is crucial to verify the supplier's compliance with industry standards and regulations. Bulk purchases often come with cost benefits, but ensure that storage and handling facilities meet safety requirements. Quality control is essential, especially for applications requiring high purity. Request certificates of analysis (CoA) and ensure the product meets the required specifications. Long-term suppliers with a track record of reliability are preferable for consistent quality and supply.
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