copper sulfate
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Definition
- Noun:
- A chemical compound: Copper sulfate is an inorganic compound with the chemical formula CuSO₄. It exists most commonly as pentahydrate crystals (CuSO₄·5H₂O), which are bright blue in color.
- A copper salt: It is produced by the reaction of sulfuric acid with copper or copper oxide.
Usage Examples
- Noun:
- The scientist added copper sulfate to the solution, turning it a deep blue.
- Copper sulfate is commonly used as an algicide in ponds and water treatment.
- A solution of copper sulfate can be used in electroplating experiments.
Advanced Usage
"Copper sulfate pentahydrate": The most common hydrated form of the compound, characterized by its vibrant blue crystals.
- The laboratory reagent was labeled as copper sulfate pentahydrate.
"Anhydrous copper sulfate": The white or grayish-white powder form of the compound, which lacks water molecules.
- Anhydrous copper sulfate is used as a desiccant to test for the presence of water.
Variants and Related Words
Cupric sulfate (n): Another name for copper sulfate, specifically denoting the copper(II) oxidation state.
- Cupric sulfate has the same chemical formula, CuSO₄.
Blue vitriol (n): A traditional or common name for copper sulfate pentahydrate.
- Historically, blue vitriol was used in dyeing and leather tanning.
Synonyms
- Cupric sulphate: (Alternative spelling, chiefly British English).
- Blue stone: A less formal name, often used in agricultural contexts.
Related Phrases
Copper sulfate solution: A liquid mixture where copper sulfate is dissolved in water.
- The experiment required a saturated copper sulfate solution.
Copper sulfate test: A procedure using the compound to detect certain substances, such as reducing sugars or water.
- The copper sulfate test confirmed the presence of glucose.
Related Idioms
(This term is a specific chemical compound and is not typically used in idiomatic expressions.)
Noun
- a copper salt made by the action of sulfuric acid on copper oxide