calcium oxide
Học thuậtThân thiện
Definition
- Noun:
- A white crystalline oxide used in the production of calcium hydroxide: A chemical compound with the formula CaO, commonly known as quicklime or burnt lime. It is produced by heating calcium carbonate (e.g., limestone) to high temperatures in a process called calcination.
Usage Examples
- Noun:
- Calcium oxide is a key ingredient in cement manufacturing.
- When water is added to calcium oxide, it produces heat and calcium hydroxide.
Advanced Usage
- Technical/Industrial Context: The term is primarily used in scientific, industrial, and construction contexts.
- The purity of the calcium oxide affects the quality of the steel produced.
Variants and Related Words
- Quicklime: A common name for calcium oxide.
- Burnt lime: Another synonym for calcium oxide.
- Calcium hydroxide (Ca(OH)₂): The compound produced when calcium oxide reacts with water, known as slaked lime.
Synonyms
- Quicklime
- Burnt lime
- Lime (Note: In casual contexts, "lime" can be ambiguous as it may also refer to calcium hydroxide or the fruit.)
Related Phrases/Compounds
- Calcium carbonate (CaCO₃): The raw material (e.g., limestone) from which calcium oxide is produced.
- Slaked lime: Common name for calcium hydroxide, the product of calcium oxide's reaction with water.
Noun
- a white crystalline oxide used in the production of calcium hydroxide