Ferrous sulfide feem ntau yog hais txog ferrous disulfide (FeS₂), uas muaj qhov zoo thermal stability.
Nyob rau hauv chav tsev kub, ferrous disulfide kuj ruaj khov. Thaum rhuab mus rau ib tug tej yam kub, nws undergoes ib tug decomposition tshuaj tiv thaiv. Decomposition feem ntau pib ntawm ib ncig ntawm 500 degree, ua ferrous sulfide (FeS) thiab sulfur (S), raws li cov tshuaj tiv thaiv kab zauv: FeS₂ → FeS + S. Raws li qhov kub nce, cov sulfur volatilizes, thiab ferrous sulfide tej zaum yuav txuas ntxiv mus nrog oxygen thiab lwm yam tshuaj nyob rau hauv txawm kub.
Los ntawm kev xav txog tshuaj lom neeg daim ntawv cog lus, lub zog ntawm Fe-S daim ntawv cog lus kom ntseeg tau tias ferrous disulfide tswj cov qauv kev ruaj ntseg nyob rau hauv ib qho chaw kub. Hauv kev lag luam, qhov thermal stability no feem ntau siv los ntawm calcining ntawm qhov tsim nyog kub kom tshem tawm cov sulfur los yog tsim cov hlau sib txuas. Feem ntau hais lus, nws muaj qhov zoo thermal stability nyob rau hauv ib tug tej yam kub thiab txias, tab sis tshuaj hloov pauv tshwm sim saum ib tug tej yam kub.