sodium carbonate
Definition
Noun: A white, crystalline, water-soluble compound (Na₂CO₃) used in manufacturing, especially in making glass, paper, and soap powders. It is a basic salt derived from carbonic acid.
Usage
"Sodium carbonate" is a technical and chemical term. It is used as a mass noun (uncountable) to refer to the chemical compound itself. It is commonly found in contexts related to chemistry, industrial manufacturing, and cleaning products. * It is often called washing soda or soda ash in commercial and domestic contexts. * In a laboratory or chemical formula, it is precisely referred to as sodium carbonate.
Examples
- Industrial Use:
- Chemical Property:
- Common Name:
Advanced Usage
- Decahydrate Form: The common hydrated form of sodium carbonate (Na₂CO₃·10H₂O) is known as sal soda or washing soda.
- Monohydrate Form: The less common monohydrate (Na₂CO₃·H₂O) is used in some chemical applications.
Variants and Related Words
- Washing Soda (n): The common name for sodium carbonate decahydrate, often used as a cleaning agent.
- Soda Ash (n): The anhydrous (water-free) form of sodium carbonate, used primarily in industry.
- Na₂CO₃ (n): The chemical formula for sodium carbonate.
- Carbonate (n): A salt of the anion CO₃²⁻; sodium carbonate is a specific example.
Synonyms
- Disodium carbonate (n): A systematic chemical name.
- Soda (n): A common but imprecise synonym, as "soda" can also refer to sodium bicarbonate (baking soda) or sodium hydroxide (caustic soda). Context is crucial.
Related Phrases and Contexts
- Sodium carbonate solution: An aqueous mixture of sodium carbonate and water.
- Sodium carbonate monohydrate / decahydrate: Terms specifying the water content in the crystalline form of the compound.
Noun
-
a sodium salt of carbonic acid; used in making soap powders and glass and paper
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