Definition

1. Noun:
   • A colorless gas: Hydrogen iodide is a chemical compound that exists as a colorless gas under standard conditions.
   • Yields hydroiodic acid in aqueous solution: When dissolved in water, hydrogen iodide gas forms hydroiodic acid, a strong acid.

Usage Examples

• Noun:
  • The laboratory synthesized hydrogen iodide for the experiment.
  • When hydrogen iodide dissolves, it forms a strongly acidic solution.

Advanced Usage

• Chemical Synthesis: Hydrogen iodide is used as a reducing agent and in the preparation of iodine compounds.
  • The reaction proceeded efficiently using hydrogen iodide as the reductant.

Variants and Related Words

• Hydroiodic acid (n): The aqueous solution formed when hydrogen iodide gas dissolves in water.
  • Hydroiodic acid is commonly used in organic chemistry.

Synonyms

• HI: The chemical formula for hydrogen iodide.

Notes on Different Meanings

• This term has a specific, technical meaning in chemistry. It does not have common idiomatic or figurative uses.

Noun

1. a colorless gas that yields hydroiodic acid in aqueous solution