Definition

1. Noun:
   • A chemical compound: A clear to pale yellow, oily, aromatic liquid with the chemical formula C₆H₅NO₂. It is characterized by its toxicity and its role as a precursor in industrial chemical synthesis.

Usage

• As a subject or object: The word "nitrobenzene" is used to name this specific chemical compound in scientific, industrial, and safety contexts.
  • Nitrobenzene is primarily produced by the nitration of benzene.
  • The factory uses large quantities of nitrobenzene in its process.
• With modifiers: It is often described by its properties or its role.
  • The spill involved toxic nitrobenzene.
  • The synthesis of aniline from nitrobenzene is a key industrial reaction.

Advanced Usage

• In chemical nomenclature: "Nitrobenzene" serves as the parent name for a class of compounds where other substituents are added to the benzene ring, though these are typically referred to with more specific names (e.g., nitrotoluene).
• In hazard communication: The term is used in material safety data sheets (MSDS/SDS) and regulatory documents to identify a specific hazardous substance.

Variants and Related Words

• Nitrobenzene derivative (n): A compound chemically derived from nitrobenzene.
• Nitroarene (n): A broader class of aromatic compounds containing a nitro group (-NO₂), of which nitrobenzene is the simplest example.

Synonyms

• Oil of mirbane (n): An archaic synonym for nitrobenzene, stemming from its use in perfumery.
• Nitrobenzol (n): An older, less common synonym.

Related Phrases

• Nitrobenzene reduction: A key chemical process to produce aniline.
  • The catalytic hydrogenation of nitrobenzene is a common industrial method.
• Nitrobenzene poisoning: Refers to the toxicological effects of exposure.
  • Symptoms of nitrobenzene poisoning include cyanosis and headache.

Noun

1. a poisonous oily water-soluble liquid used as a solvent and in the manufacture of aniline