hydrochloric acid
Definition
- Noun:
- A strongly corrosive, colorless acid: Hydrochloric acid is an aqueous solution of hydrogen chloride gas (HCl). It is a highly corrosive, strong mineral acid.
- A key digestive fluid: In biology, it refers to the dilute acid secreted by the stomach lining to aid in digestion.
Examples of Usage
- Noun:
- Hydrochloric acid is commonly used in industrial cleaning and metal processing.
- The stomach produces hydrochloric acid to break down proteins.
Advanced Usage
- "Concentrated hydrochloric acid": Refers to the acid in a high-purity, undiluted form, which is extremely hazardous.
- Handling concentrated hydrochloric acid requires proper protective equipment.
- "Dilute hydrochloric acid": Refers to the acid mixed with water, reducing its concentration and corrosiveness.
- The experiment called for a solution of dilute hydrochloric acid.
Variants and Related Words
- Hydrochloride (n): A salt formed when hydrochloric acid reacts with an organic base, often used in pharmaceuticals.
- The medicine is available as a hydrochloride salt.
- Muriatric acid (n): A common, less pure industrial grade of hydrochloric acid.
- Muriatric acid is often used for cleaning masonry.
Synonyms
- HCl: The chemical formula commonly used as a synonym.
- Spirit of salt: An archaic historical name for the acid.
Related Phrases
- "Hydrochloric acid solution": A phrase specifying the acid is dissolved in water.
- The protocol requires a 1M hydrochloric acid solution.
Noun
-
an aqueous solution of hydrogen chloride; a strongly corrosive acid
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