الرئيسية » أرشيف الوسم : Styrene

أرشيف الوسم : Styrene

Benzene

Benzene A colorless, liquid, inflammable, aromatic hydrocarbon of chemical for­mula C6H6 which boils at 80.l°C (176.2°F) and freezes at 5.4-5.5°C (41.7-41.9°F). In the older American and British technical literature benzene is designated by the Ger­man name benzol. In current usage the term benzol is commonly reserved for the less pure …

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buna rubber

A type of synthetic rubber based in polymerization of butadiene (buta-1,3-diene). The name comes from Bu (for butadiene) and Na (for sodium, which was used as a catalyst in the original polymeriza­tion reaction). An improved form, known as Buna-S was developed by copolymerizing butadiene with styrene. In 1934, Buna-N was …

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