sal-ammoniac
Definition
Noun (uncountable): - A white or colorless crystalline salt, ammonium chloride (NH₄Cl), that is used in dry-cell batteries, soldering fluxes, and as an expectorant in medicine. It is also known historically as "sal ammoniac" and is found naturally in volcanic regions.
Usage Examples
- (A crystalline salt used in laboratories.)
- (A historical medicinal use of ammonium chloride.)
- (An industrial application of the salt.)
Advanced Usage
- "sal-ammoniac sublimation": A process where ammonium chloride is heated to produce a white smoke, used historically in alchemy and early chemistry.
- The alchemist observed the sal-ammoniac sublimation as a key step in his experiment. (The transformation of the solid into vapor without melting.)
- "sal-ammoniac in dry-cell batteries": A common modern use where the salt serves as an electrolyte in zinc-carbon batteries.
- The battery's electrolyte solution contained sal-ammoniac to facilitate electrical conductivity. (Ammonium chloride as a conductive medium.)
Variants and Related Words
- Sal ammoniac (noun, variant spelling): an older, alternative spelling of "sal-ammoniac."
- The ancient text referred to the mineral as sal ammoniac. (Historical term for ammonium chloride.)
- Ammonium chloride (noun): the systematic chemical name for sal-ammoniac.
- Ammonium chloride is the official IUPAC name for sal-ammoniac. (Scientific nomenclature.)
- Ammoniacal (adjective): relating to or containing ammonia or ammonium compounds.
- The solution had an ammoniacal smell, indicating the presence of sal-ammoniac. (Describing a property of the salt.)
Synonyms
- Ammonium chloride: the chemical compound itself.
- Nushadir salt: a historical term from Persian and Arabic alchemy.
- Horn salt: an old English term for a specific form of the salt.
Related Idioms
- None common in modern English; "sal-ammoniac" is a technical or historical term and does not appear in idiomatic expressions.