硫黄

1. Origins, structure, and basic meaning

• Structure: 硫黄 is read as いおう and is a noun for the chemical element sulfur and its yellow solid material; the whole spelling is read いおう.
• Basic usage: Use 硫黄の性質 when discussing its properties and 黄色い硫黄 when describing the material itself.

2. Common pitfalls and similar expressions

• Reading
  • The reading is not obtained by simply joining common readings of the individual kanji, so learn 硫黄 and いおう as a unit.
• Element and specimen
  • It can refer to sulfur as a scientific element or to a visible specimen of the material at a volcanic site.