unslaked lime
Definition
Noun: - A white, caustic, alkaline crystalline solid: Unslaked lime is the common name for calcium oxide (chemical formula CaO). It is produced by heating limestone (calcium carbonate) to high temperatures. It reacts vigorously with water, releasing heat in a process called slaking, to form calcium hydroxide (slaked lime).
Usage
- Industrial and Chemical Context: The term is primarily used in industrial, construction, and chemical fields to refer to the raw, highly reactive material before it is mixed with water.
- The factory produced unslaked lime for use in steel manufacturing.
- Handle unslaked lime with care, as it is corrosive and can cause severe burns.
Advanced Usage
- "Quicklime": This is a direct and more common synonym for "unslaked lime" in technical and trade contexts.
- Quicklime, or unslaked lime, is essential in the production of cement.
Variants and Related Words
- Quicklime (n): A synonym for unslaked lime.
- Calcium oxide (n): The systematic chemical name.
- Burnt lime (n): Another industrial term for the same compound.
- Slaked lime (n): The product (calcium hydroxide) formed when unslaked lime reacts with water.
- Lime (n): A broader term that can refer to calcium oxide, calcium hydroxide, or even calcium carbonate depending on context, often requiring clarification.
Synonyms
- Quicklime
- Calcium oxide
- Burnt lime
- Calx (archaic/technical)
Related Phrases/Compounds
- Lime kiln: A furnace used to produce unslaked lime by calcining limestone.
- The old lime kiln was used to burn limestone into unslaked lime.
- Lime burning: The process of producing unslaked lime.
Noun
-
a white crystalline oxide used in the production of calcium hydroxide
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