From Wikipedia, the free encyclopedia
鉎(粵拼:sing3)而家多數叫鏽(或者寫做銹),係指金屬(尤其係鐵)嘅氧化物。鐵鉎呈啡紅色,因為鐵喺潮濕環境同空氣嘅氧產生化學反應而成。唔同情況下會形成唔同形式嘅鉎。[1]鉎主要由三氧化二鐵水合物Fe2O3·nH2O同氫氧化鐵(FeO(OH), Fe(OH)3)組成。其他金屬亦都會被氧化,但係通常唔叫做「鉎」。如果畀足時間,有充足氧氣同水嘅情況下,鐵就會完全氧化成鉎。鋁嘅氧化好慢,因為氧氣會喺鋁嘅表面形成一層緻密嘅氧化鋁薄膜,呢個反應叫做鈍化。
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.