Sentence Examples


  • For a nail polish to be considered natural, it should be free of formaldehyde, toluene, xylene and artificial colors.
  • STYROLENE, C 6 H 5 CH:CH 2, also known as phenylethylene or vinylbenzene, an aromatic hydrocarbon found to the extent of 1 to 4% in storax; it also occurs with crude xylene in coal tar fractions.
  • Para-xylene is obtained when camphor is distilled with zinc chloride, but it is best prepared from para-brom-toluene or dibrombenzene, methyl iodide and sodium.
  • XYLENE, or Dimethyl Benzene, C6H4(CH3)2.
  • An analogous synthesis is that of dihydro-m-xylene from methyl heptenone,(CH 3) 2 C:CH (CH2)2.CO CH3.