烧碱

烧碱	shāo jiǎn	caustic soda NaOH
烧	shāo	to burn / to cook / to stew / to bake / to roast / to heat / to boil (tea, water etc) / fever / to run a temperature / (coll.) to let things go to one's head
碱	jiǎn	variant of 碱
碱	jiǎn	(chemistry) base; alkali; soda