0 New HSK word(s):

0 Old HSK word(s):

氢氧化铁 [qing1 yang3 hua4 tie3]

Eisenhydroxid, Eisen(III)-hydroxid (S, Chem)
氧化铁 [yang3 hua4 tie3]

Eisenoxid, Eisen(III)-oxid (S, Chem)