Crude Benzole
Crude Benzole : A crude product extracted from coal gas. consisting essentially of benzene and its lower homologues. Unsaturated hydrocarbons and sulphur compounds are usually present. Paraffins, naphthalene, phenols and pyridine bases may also be present, the last two usually in small amounts. Many crude benzoles will yield appreciable quantities of residue resulting from the oil used in their recovery. Products having a similar distillation range are obtained by the distillation of crude tar
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