丁烷

dīngwán

noun #36,902

Meanings

1 butane (C4H10)

Characters

fourth (Heavenly Stem; here = C4)

Examples

打火机里装的是丁烷。

Dǎhuǒjī lǐ zhuāng de shì dīngwán.

Lighters are filled with butane.

丁烷在常温下是无色气体。

Dīngwán zài chángwēn xià shì wúsè qìtǐ.

Butane is a colourless gas at room temperature.

Tips

memory

Chinese names alkanes by syllable count: 甲 (methane, C1), 乙 (ethane, C2), 丙 (propane, C3), 丁 (butane, C4), 戊 (pentane, C5)... the first ten Heavenly Stems mark carbon count, and 烷 is the suffix '-ane'.

Stroke Order

丁 dīng

烷 wán