arsine

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Thân thiện
arsine

A chemist carefully handles a sealed cylinder of arsine in a laboratory fume hood.

Definition
  1. Noun:
    • A chemical compound: Arsine is a colorless, flammable, and highly poisonous gas with the chemical formula AsH₃.
    • A substance with specific uses: It is used in the field of organic synthesis, in the doping of semiconductor materials for transistors, and has been employed as a chemical weapon in warfare.
Usage
  • Arsine is primarily a technical term used in chemistry, materials science, and military contexts.
  • It is an uncountable noun when referring to the substance in general (e.g., "exposure to arsine").
  • It can be used countably when referring to types or molecules (e.g., "arsine and its derivatives").
Examples
  • Noun:
    • The laboratory had strict protocols for handling arsine due to its extreme toxicity.
    • In semiconductor manufacturing, arsine is used to introduce arsenic atoms into silicon crystals.
    • The use of arsine as a poison gas is banned under international chemical weapons conventions.
Advanced Usage
  • "Arsine gas": A common collocation specifying the gaseous state.
    • A leak of arsine gas required the immediate evacuation of the facility.
  • In organic chemistry, arsine can refer to a class of organoarsenic compounds derived from AsH₃ (e.g., trimethylarsine).
Variants and Related Words
  • Arsenic (n): The chemical element (As) from which arsine is derived.
  • Arsine oxide (n): The compound formed when arsine is oxidized.
  • Stibine (n): A related toxic gas (SbH₃) containing antimony, analogous to arsine.
Synonyms
  • Arsenic trihydride: The systematic chemical name for AsH₃.
  • Arseniuretted hydrogen: An older, alternative name for the compound.
Notes on Meaning
  • The primary meaning is the specific chemical compound AsH₃. Its extreme toxicity is a defining characteristic in all contexts, whether industrial, scientific, or historical (warfare).
arsine

A chemist carefully handles a sealed cylinder of arsine in a laboratory fume hood.

Noun
  1. a poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfare

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