硫酸

1. Origins, structure, and basic meaning

• Structure: 硫酸 (りゅうさん) is a noun for the chemical substance sulfuric acid.
• Basic usage: It appears in references to a sulfuric acid container or the substance's properties in a textbook.
  • 実験室では硫酸の容器に触れなかった。 — We did not touch the sulfuric acid container in the laboratory.
  • 教科書で硫酸の性質を確認した。 — We checked the properties of sulfuric acid in the textbook.

2. Common pitfalls and similar expressions

• Substance and container
  • 硫酸 names the substance itself, while 硫酸の容器 is the container holding it; the noun after の identifies the object being discussed.