亚硝酸钠

亞硝酸鈉

yàxiāosuānnà

noun

Meanings

1 sodium nitrite (NaNO2)

Characters

Examples

腌肉里会加少量亚硝酸钠用来发色和防腐。

Yān ròu lǐ huì jiā shǎoliàng yàxiāosuānnà yònglái fā sè hé fángfǔ.

A small amount of sodium nitrite is added to cured meats for color and preservation.

亚硝酸钠超标对健康有害。

Yàxiāosuānnà chāobiāo duì jiànkāng yǒuhài.

Excess sodium nitrite is harmful to health.

Tips

usage

亚 marks the 'lower' oxidation state of an acid, so 亚硝酸 = nitrous acid (HNO2) while 硝酸 = nitric acid (HNO3). 亚硝酸钠 is therefore NaNO2, not NaNO3 (which is 硝酸钠).

Stroke Order

亚 Yà

硝 xiāo

酸 suān

钠 nà