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benzene

/ben-zeen, ben-zeen/US // ˈbɛn zin, bɛnˈzin //UK // (ˈbɛnziːn, bɛnˈziːn) //

苯,苯类,苯系物

Definitions

n.名词 noun
  1. 1

    Chemistry.

    • : a colorless, volatile, flammable, toxic, slightly water-soluble, liquid, aromatic compound, C6H6, obtained chiefly from coal tar: used in the manufacture of commercial and medicinal chemicals, dyes, and as a solvent for resins, fats, or the like.

Examples

  • A recent major breakthrough was a tabletop device that could operate on sunlight alone for more than 3,000 hours without degradation, converting methane into benzene and reducing nitrogen into ammonia, an important element for fertilizer.

  • Exposure to benzene at very high levels can cause difficulty thinking, change in heart function and it’s considered a cancer-causing chemical.

  • Benzene causes cancer, thins the blood to cause symptoms resembling hemophilia, and damages fetuses exposed to it.

  • Benzene makes people sick, shortens lives, and harms future generations.

  • Butane purchased at a hardware store often contains chemicals like benzene, which is known to cause cancer.

  • However studies have found dangerous compounds like benzene and formaldehyde in inhaled or secondhand vapor.

  • A solution of hydrogen chloride in a poorly ionizing medium, like benzene or toluene, is an extremely poor conductor.

  • Petroleum boiling between 160 and 195 F. dissolves less than benzene.

  • To undertake anything big was out of the question, so we dropped thirty-two gallons of benzene and a spare propeller.

  • Another mile went by and we came to snow, where forty gallons of benzene, twelve gallons of oil and a sledge were abandoned.

  • The hydrocarbons consist largely of benzene, which requires three times as much air for complete combustion as acetylene does.