xút
Definition
- Noun:
- Caustic soda / Sodium hydroxide (NaOH): A strong, corrosive alkaline chemical compound used in industry and manufacturing. It is a white solid that readily absorbs moisture and dissolves in water, releasing heat.
Usage Examples
- Noun:
- Xút là hóa chất quan trọng trong sản xuất giấy và xà phòng. (Caustic soda is an important chemical in the production of paper and soap.)
- Cần đeo găng tay bảo hộ khi tiếp xúc với xút. (You must wear protective gloves when handling sodium hydroxide.)
- Họ dùng xút để thông tắc cống. (They use caustic soda to unclog drains.)
Advanced Usage
- "xút ăn da": This phrase emphasizes the corrosive, "flesh-eating" property of the substance.
- Đây là loại xút ăn da, cần cực kỳ cẩn thận. (This is a caustic type of soda, requiring extreme caution.)
Variants and Related Words
Xút lỏng / Dung dịch xút (n): Liquid caustic soda / Sodium hydroxide solution.
- Nhà máy sử dụng chủ yếu là xút lỏng. (The factory primarily uses liquid caustic soda.)
Natri hydroxit (n): The formal chemical name, Sodium hydroxide.
- Công thức hóa học của xút là Natri hydroxit. (The chemical formula for caustic soda is Sodium hydroxide.)
Synonyms
- Caustic soda: The common industrial name.
- Sodium hydroxide: The standard chemical name.
- Lye: A common name, especially for solutions used in soap-making.
Safety Notes
- Corrosive Hazard: Xút is highly corrosive and can cause severe chemical burns to skin and eyes. It requires careful handling with proper personal protective equipment (PPE).
- Exothermic Reaction: Dissolving xút in water generates significant heat.