氧化鐵(II)(粵拼:joeng5 faa3 tit3,Iron(II) Oxide)係鐵(II)嘅氧化物,化學式FeO,外觀係黑色粉,唔溶喺水。
4 F e O = F e + F e 3 O 4 {\displaystyle 4{\text{ }}FeO{\text{ = }}Fe{\text{ }}+{\text{ }}F{{e}_{3}}{{O}_{4}}}
S i + 2 F e O = S i O 2 + 2 F e {\displaystyle Si+{\text{ }}2{\text{ }}FeO{\text{ = }}Si{{O}_{2}}+{\text{ }}2{\text{ }}Fe}
M n + F e O = M n O + F e {\displaystyle Mn+{\text{ }}FeO{\text{ = }}MnO{\text{ }}+{\text{ }}Fe}
2 P + 5 F e O = P 2 O 5 + 5 F e {\displaystyle 2P+{\text{ }}5{\text{ }}FeO{\text{ = }}{{P}_{2}}{{O}_{5}}+{\text{ }}5{\text{ }}Fe}
F e O + 2 H C l = F e C l 2 + H 2 O {\displaystyle FeO{\text{ }}+{\text{ }}2HCl{\text{ = }}FeC{{l}_{2}}+{\text{ }}{{H}_{2}}O}
F e O + H 2 S O 4 = F e S O 4 + H 2 O {\displaystyle FeO{\text{ }}+{\text{ }}{{H}_{2}}S{{O}_{4}}{\text{= }}FeS{{O}_{4}}+{\text{ }}{{H}_{2}}O}