氢氧化钠 Traditional 氫氧化鈉 qīng yǎng huà nà 🔊 sodium hydroxide NaOH; caustic soda + Keep this word Meanings qīng yǎng huà nà 氫氧化鈉 sodium hydroxide NaOH; caustic soda Its characters 氢qīnghydrogen (chemistry)氧yǎngoxygen (chemistry)化huàto make intoHSK 5钠nàsodium (chemistry)