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N-Butane (C4H10).
Butane sī chi̍t-ê hoà-ha̍k-sek siá-chòe C4H10 ê alkane hoà-ha̍p-bu̍t, 1 hun-chú ê butane pau-hâm 4 hun-chú ê carbon gôan-chú. Butane tī sek-un kah 1 atm ê chōng-hóng hā, sī chi̍t-ê khì-thé hoà-ha̍p-bu̍t. Butane ū 2-chióng ī-sèng-thé, hun-pia̍t sī n-butane kah isobutane; butane it-poaⁿ lóng-sī chit 2-chióng ī-sèng-thé ê hūn-ha̍p-bu̍t; put-kò, nā àn-chiàu IUPAC só͘ chè-tēng ê hō-miâ hong-sek, "butane" só͘ tāi-piáu-ê chí-ū "n-butane" ī-sèng-thé. Butane sī chi̍t-ê chin o̍ah-phoat-ê bû-sek khó-jiân-bu̍t.
