Definition

1. Noun:
   • Chemical compound: "bisulfate" refers to a salt or ester of sulfuric acid in which only one of the two hydrogen atoms is replaced by a metal or other cation. It is also known as a hydrogen sulfate.

Usage Examples

• Noun:
  • The laboratory prepared a solution of sodium bisulfate for the experiment. (A specific salt derived from sulfuric acid.)
  • Bisulfate salts are commonly used in cleaning products and as pH adjusters. (Practical applications of the chemical.)

Advanced Usage

• "Bisulfate ion": the anion HSO₄⁻, which acts as a weak acid in aqueous solutions.

  • In water, the bisulfate ion can donate a proton to form sulfate. (Describes its chemical behavior.)

• "Bisulfate of potash": an older term for potassium bisulfate.

  • Bisulfate of potash was historically used in fertilizers. (A specific compound variant.)

Variants and Related Words

• Bisulfate (n): the primary term; no common variants beyond chemical nomenclature.
• Sulfate (n): a related compound where both hydrogen atoms are replaced.
  • Sodium sulfate is different from sodium bisulfate in its chemical formula. (Comparison between related chemicals.)

Synonyms

• Hydrogen sulfate: the systematic chemical name for the same substance.
  • The term hydrogen sulfate is often used interchangeably with bisulfate in scientific contexts.

Related Idioms

• "A bisulfate reaction": a specific chemical process involving bisulfate, though not a common idiom.
  • The bisulfate reaction produced a noticeable color change. (Describes a chemical event.)

Phrasal Verbs

• No phrasal verbs exist for "bisulfate" as it is a noun in technical chemistry.

Notes for Learners

• "Bisulfate" is a technical term used primarily in chemistry. It is not used in everyday conversation. The prefix "bi-" indicates that the compound contains two different elements or groups (here, one hydrogen and one metal or cation replacing the two hydrogens of sulfuric acid).