酸性

さんせい

acidity

JLPT N3

Character Breakdown

Understanding 酸性 (さんせい)

酸性 means "acidity" and refers to the chemical property of substances that have acidic characteristics. It is commonly used in scientific, environmental, and everyday contexts when discussing pH levels or the nature of liquids and soils.

Common Contexts

You will often see 酸性 used in phrases like 酸性雨 (acid rain), which is a common environmental concern. It also appears in discussions about water quality, soil conditions, and chemical reactions.

Collocations and Patterns

  • 酸性が強い: "strong acidity" – used to describe substances with high acidity.
  • 酸性雨: "acid rain" – environmental term.
  • 酸性とアルカリ性のバランス: "balance between acidity and alkalinity" – important in chemistry and biology.

Usage Notes

酸性 is a noun and typically appears in formal or scientific contexts. When describing the acidity level, it often pairs with adjectives like 強い (strong) or 弱い (weak). Learners sometimes confuse 酸性 with 酸っぱい (すっぱい), which means "sour" and describes taste rather than chemical property. Remember, 酸性 is about chemical acidity, not flavor.

Using 酸性 correctly helps you talk about chemistry, environmental issues, and health-related topics with precision.

Example Sentences

このみずはさんせいがつよいので、のまないほうがいいです。

This water is strongly acidic, so it's better not to drink it.

さんせいうはかんきょうにあくえいきょうをあたえます。

Acid rain has a harmful effect on the environment.

さんせいとあるかりせいのばらんすがたいせつです。

The balance between acidity and alkalinity is important.