rochelle salt: meaning, definition, pronunciation and examples
C2 (technical/scientific term)Technical/Scientific. Formal or neutral within specialized contexts.
Quick answer
What does “rochelle salt” mean?
A chemical compound, potassium sodium tartrate tetrahydrate, a colourless crystalline solid.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound, potassium sodium tartrate tetrahydrate, a colourless crystalline solid.
The compound is used in medicine (as a laxative), in the food industry (as a component of baking powder), and historically in electronics for its piezoelectric properties (e.g., in early microphones).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Both varieties treat it as a technical compound noun.
Connotations
None beyond the technical/scientific reference.
Frequency
Equally low frequency and specialized in both varieties.
Grammar
How to Use “rochelle salt” in a Sentence
The N is used for V-ing.N crystals exhibit piezoelectricity.N, discovered in..., is a...Vocabulary
Collocations
Examples
Examples of “rochelle salt” in a Sentence
verb
British English
- N/A
American English
- N/A
adverb
British English
- N/A
American English
- N/A
adjective
British English
- N/A
American English
- N/A
Usage
Meaning in Context
Business
Rare, potentially in pharmaceutical or specialty chemical manufacturing contexts.
Academic
Primary context. Used in chemistry, materials science, and history of science lectures and texts.
Everyday
Virtually never used.
Technical
The standard context. Found in electronics (historical), chemistry, and food technology documentation.
Vocabulary
Synonyms of “rochelle salt”
Neutral
Weak
Watch out
Common Mistakes When Using “rochelle salt”
- Incorrect capitalization ('Rochelle Salt'), treating it as a common noun.
- Omitting 'salt' and just using 'Rochelle'.
- Confusing it with other salts like Epsom salt.
FAQ
Frequently Asked Questions
No, its use in electronics is largely historical. More efficient and stable piezoelectric materials like quartz or ceramics have replaced it.
In very small, controlled amounts as part of specific food preparations (like baking powder), yes. In pure form and larger quantities, it is a potent laxative and should not be consumed casually.
It was first prepared and studied in the 1670s by an apothecary, Pierre Seignette, in the French city of La Rochelle.
No. They are chemically different compounds with different properties and uses. Epsom salt is magnesium sulfate, table salt is sodium chloride, and Rochelle salt is potassium sodium tartrate.
A chemical compound, potassium sodium tartrate tetrahydrate, a colourless crystalline solid.
Rochelle salt is usually technical/scientific. formal or neutral within specialized contexts. in register.
Rochelle salt: in British English it is pronounced /rəʊˌʃɛl ˈsɔːlt/, and in American English it is pronounced /roʊˌʃɛl ˈsɔlt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a **Rochelle** singing into an old **salt**-shaker microphone (its historical piezoelectric use).
Conceptual Metaphor
N/A (Highly technical term with little metaphorical extension).
Practice
Quiz
What is a primary historical application of Rochelle salt?