亚硫酸钠

亞硫酸鈉

yàliúsuānnà

noun

Meanings

1 sodium sulfite (Na2SO3)
2 sulfite food preservative and antioxidant

Characters

Examples

亚硫酸钠常用作食品防腐剂。

Yàliúsuānnà cháng yòng zuò shípǐn fángfǔjì.

Sodium sulfite is commonly used as a food preservative.

配料表里标明含有亚硫酸钠。

Pèiliào biǎo lǐ biāomíng hányǒu yàliúsuānnà.

The ingredient list states it contains sodium sulfite.

Tips

usage

亚 + X酸 + 钠 is the systematic chemical pattern: 亚 = sub- (one oxygen less than the full -ate), 酸 = acid, 钠 = sodium. So 亚硫酸钠 literally parses as 'sub-sulfur-acid sodium' = Na2SO3, while 硫酸钠 would be Na2SO4 (sulfate).

Stroke Order

亚 Yà

硫 liú

酸 suān

钠 nà