ethyl

/'eθil/

Thân thiện

A scientist carefully measures ethyl alcohol in a laboratory beaker.

Definition

1. Noun:
   • A univalent hydrocarbon radical: "ethyl" refers to the chemical group C₂H₅, which is derived from ethane by removing one hydrogen atom. It is a common alkyl group in organic chemistry.

Usage

• As a noun in chemistry: The term "ethyl" is used to name compounds or describe the presence of this specific two-carbon alkyl group.
  • Ethyl is a key component in many organic solvents.
  • The ethyl group is attached to the oxygen atom in this ether.

Examples

• In compound names:
  • Ethyl alcohol, commonly known as ethanol, is used in beverages and as a disinfectant.
  • The fuel additive contains ethyl tert-butyl ether (ETBE).
• In chemical descriptions:
  • The molecule features an ethyl substituent on the benzene ring.
  • This reaction replaces the hydrogen with an ethyl group.

Advanced Usage

• "Ethyl radical": A reactive intermediate containing the univalent ethyl group.
  • The ethyl radical can be generated during certain decomposition reactions.
• In formal chemical nomenclature, "ethyl-" is used as a prefix.
  • The compound is named ethylbenzene.

Variants and Related Words

• Ethylene (n): A different hydrocarbon (C₂H₄) with a carbon-carbon double bond, not to be confused with the ethyl group.
• Ethane (n): The parent alkane (C₂H₆) from which the ethyl group is formally derived.

Synonyms

• C₂H₅ group: A direct synonym specifying the chemical formula.
• Ethyl moiety: A more technical term used in chemistry to refer to the ethyl part of a molecule.

Related Phrases

• Ethyl acetate: An ester formed from ethanol and acetic acid.
• Ethyl chloride: A chloroethane compound used historically as a local anesthetic.

Học thuật

Noun

1. the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom

Từ đồng nghĩa

• ethyl group
• ethyl radical