cupric sulphate
Definition
- Noun:
- A chemical compound: "Cupric sulphate" refers specifically to a blue, crystalline, inorganic compound with the chemical formula CuSO₄. It is a copper salt produced by the reaction of sulfuric acid with copper or copper oxide.
- A substance with specific uses: It is commonly used as an algicide, fungicide, in electroplating, and as a laboratory reagent.
Usage Examples
- Noun:
- The laboratory technician prepared a solution of cupric sulphate for the experiment.
- Cupric sulphate is often used in agriculture to correct copper-deficient soils.
- The bright blue color of the cupric sulphate crystals is distinctive.
Advanced Usage
- "Cupric sulphate pentahydrate": This is the most common hydrated form of the compound (CuSO₄·5H₂O), known for its vibrant blue crystals.
- The mineral chalcanthite is a naturally occurring form of cupric sulphate pentahydrate.
Variants and Related Words
- Copper(II) sulfate (n): This is the modern, systematic IUPAC name for the same compound, "cupric sulphate." The term "cupric" indicates copper in the +2 oxidation state.
- Blue vitriol (n): A traditional, common name for cupric sulphate pentahydrate.
- Cuprous sulphate (n): A different compound (copper(I) sulphate, Cu₂SO₄), which is much less stable and common than cupric sulphate.
Synonyms
- Copper sulfate: The most common synonym, especially in American English where "sulfate" is spelled with an 'f'.
- Blue stone: A common name in some industrial and agricultural contexts.
Notes on Usage
- The spelling "cupric sulphate" is standard in British English and other regions using Commonwealth spelling conventions. The American English spelling is "cupric sulfate".
- As a chemical name, it is typically used in scientific, industrial, agricultural, and educational contexts. It is not a common word in everyday conversation.
Noun
-
a copper salt made by the action of sulfuric acid on copper oxide
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