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samar da matakai na baƙin ƙarfe oxide rawaya

Iron oxide rawaya ne m foda rawaya pigment. Matsayin dangi ya kasance 3.5. Abubuwan sunadarai sun tabbata. Girman barbashi shine 0.01-0.02 μ M. Yana da babban yanki na musamman (kusan sau 10 na ƙarfe baƙin ƙarfe na yau da kullun), ƙarfin ƙarfin ultraviolet, ƙarfin juriya, juriya na yanayi da sauran kyawawan kaddarorin. Fim ɗin a bayyane yake kuma yana da kyawawan halaye. Yadda ake yin baƙin ƙarfe oxide

 

Hanyar: Hanyar haɗarin ƙarfe mai ƙanshi: sulfuric acid yana aiki tare da takaddun ƙarfe don samar da ƙarfe mai ƙanshi. An ƙara sodium hydroxide kuma ana amfani da iska don yin kwalliya don shirya maƙallan ƙira. Addedara ƙarfe da ƙaran ƙarfe ana saka su a cikin dakatarwar ginshiƙan ƙarfe, mai ɗumi da hurawa cikin iska don shaƙar iska. An shirya rawaya mai jan ruwa ta hanyar tace matsa lamba, rinsing, bushewa da nika.

 

Fe + H2SO4 → FeSO4 + H2 ↑

Fe + H2SO4 → FeSO4 + H2 ↑

FeSO4 + 2NaOH → Fe (OH) 2 + Na2SO4

FeSO4 + 2NaOH → Fe (OH) 2 + Na2SO4

4Fe (OH) 2 + O2 → 4FeOOH + 2H2O

4Fe (OH) 2 + O2 → 4FeOOH + 2H2O

H2SO4 + Fe + 7H2O → FeSO4 · 7H2O + H2 ↑

H2SO4 + Fe + 7H2O → FeSO4 · 7H2O + H2 ↑

 

FeSO4 · 7H2O + O2 → 2Fe2O3 · H2O ↓ + 4H2SO4 + 2H2O

FeSO4 · 7H2O + O2 → 2fe2o3 · H2O ↓ + 4h2so4 + 2H2O yanayi: ƙara 74g baƙin ƙarfe a cikin 1000ml 15% sulfuric acid har sai baƙin ƙarfe ya ɓace, kuma ya samar da ƙarfe mai ƙarfi tare da nitsuwa kimanin 200g / L. Isasshen 30% sodium hydroxide shine an kara shi a cikin sinadarin sulfate bayani, kuma kashi 40% na jimlar karfen an canza shi zuwa sinadarin hydroxide [Fe (OH) 2] ta hanyar ci gaba da motsawa, sannan kuma an sanya iron din a cikin Fe don samar da kwayar murfin a 30 ~ 35 ℃. Sannan an kara bayanan gwal 90 g / L a cikin cakuda don samar da 7 g / L crystal nucleus da 40 g / L ferrous sulfate, sannan kuma ya zafafa zuwa 85 ℃ don iskar shaka ta iska a saurin 600 L / h na 64 h, kuma sannan tace, wanka, busashshe da nikakken don samun rawanin jan ruwa mai rawaya.


Post lokaci: Jul-29-2020