亚硝酸

亞硝酸

yàxiāosuān

noun #59,943

Meanings

1 nitrous acid

Characters

saltpeter; nitre

Examples

HSK 7-9

亚硝酸很不稳定，只存在于溶液中。

Yàxiāosuān hěn bù wěndìng, zhǐ cúnzài yú róngyè zhōng.

Nitrous acid is very unstable and exists only in solution.

HSK 7-9

亚硝酸形成的盐叫亚硝酸盐，腌菜里常常含有这类物质。

Yàxiāosuān xíngchéng de yán jiào yàxiāosuānyán, yāncài lǐ chángcháng hányǒu zhè lèi wùzhì.

The salts of nitrous acid are called nitrites, and pickled vegetables often contain them.

Tips

usage

亚 "sub-" marks the acid with less oxygen: 亚硝酸 (HNO2) is nitrous acid, 硝酸 (HNO3) is nitric acid. The same pair appears in 亚硫酸 "sulfurous acid" and 硫酸 "sulfuric acid".

Stroke Order

亚 Yà

硝 xiāo

酸 suān