cường thủy
Definition
- Noun:
- Aqua regia: A highly corrosive, fuming yellow or red mixture of concentrated nitric acid and concentrated hydrochloric acid, typically in a 1:3 molar ratio. It is one of the few reagents capable of dissolving noble metals like gold and platinum.
Usage Examples
- Noun:
- Cường thủy là một hỗn hợp axit mạnh. (Aqua regia is a mixture of strong acids.)
- Vàng có thể bị hòa tan trong cường thủy. (Gold can be dissolved in aqua regia.)
Advanced Usage
- Technical/Historical Context: The term "aqua regia" is Latin for "royal water" or "king's water," reflecting its ability to dissolve the "royal" or noble metals. In Vietnamese, "cường thủy" directly translates this concept ("cường" meaning strong, "thủy" meaning water).
- Cường thủy từng được các nhà giả kim sử dụng. (Aqua regia was used by alchemists.)
Variants and Related Words
- Nước cường toan: An alternative, less common Vietnamese term for aqua regia, using the Sino-Vietnamese word "toan" (acid).
- Hỗn hợp axit: Acid mixture (a general descriptive term, not a synonym for aqua regia).
Synonyms
- Aqua regia: The direct and only precise English equivalent.
Notes on Meaning
- Specificity: "Cường thủy" refers specifically to the mixture of nitric and hydrochloric acids. It is not a general term for any strong acid or corrosive liquid.
- Field of Use: This term is used almost exclusively in chemistry, metallurgy, and related scientific or industrial contexts.