Iron(III) oxide CAS 1309-37-1
| Zizindikiro Zowopsa | Xi - Zosangalatsa |
| Zizindikiro Zowopsa | R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. |
| Ma ID a UN | UN 1376 |
Iron(III) oxide CAS 1309-37-1 yambitsani
khalidwe
ufa wofiyira wobiriwira mpaka wofiyira-wofiira wa trigonal crystalline ufa. Kachulukidwe wachibale 5. 24. Malo osungunuka 1565 °C (kuwola). Insoluble m'madzi, sungunuka mu hydrochloric acid, sulfuric acid, sungunuka pang'ono mu nitric acid ndi mowa. Akatenthedwa, mpweya umatulutsidwa, womwe ukhoza kusinthidwa kukhala chitsulo ndi hydrogen ndi carbon monoxide. Good kubalalitsidwa, tinting wamphamvu ndi kubisala mphamvu. Palibe permeability mafuta ndipo palibe permeability madzi. Zosagwirizana ndi kutentha, zosagwirizana ndi kuwala, zosamva acid komanso zosagwirizana ndi alkali.
Njira
Pali njira zokonzekera zonyowa komanso zowuma. Zonyowa zimakhala ndi makhiristo abwino, tinthu ting'onoting'ono tofewa, ndipo ndizosavuta kugaya, motero ndizoyenera kupanga ma pigment. Zowuma zimakhala ndi makhiristo akulu ndi tinthu tating'ono tolimba, ndipo ndi oyenera kupangira maginito ndi kupukuta ndi kupukuta.
Njira yonyowa: mulingo wina wa 5% ferrous sulfate solution umachitika mwachangu ndi soda yowonjezera (alkali wowonjezera wa 0.04 ~ 0.08g/mL amafunikira), ndipo mpweya umalowetsedwa kutentha kwa firiji kuti zonse zisinthe. chitsulo chofiira chofiirira chachitsulo cha hydroxide colloidal solution, chomwe chimagwiritsidwa ntchito ngati phata la kristalo poyika iron oxide. Ndi kristalo watchulidwa pamwambapa monga chonyamulira, ndi ferrous sulfate monga sing'anga, mpweya umayambitsidwa, pa 75 ~ 85 ° C, pansi pa kukhalapo kwa chitsulo chachitsulo, ferrous sulfate imachita ndi mpweya mumlengalenga. kupanga ferric oxide (ie, iron red) yoyikidwa pa kristalo nucleus, ndipo sulphate mu njira yothetsera imakhudzidwa ndi chitsulo chachitsulo kuti ipangikenso. yachitsulo sulphate, ndi yachitsulo sulphate ndi oxidized mu chitsulo wofiira ndi mpweya ndipo akupitiriza waikamo, kotero kuti mkombero umatha kumapeto kwa ndondomeko yonse kupanga chitsulo okusayidi wofiira.
Njira youma: asidi wa nitric amachitira ndi mapepala achitsulo kuti apange ferrous nitrate, yomwe imakhazikika ndi crystallized, yopanda madzi ndi yowuma, ndi calcined pa 600 ~ 700 ° C kwa 8 ~ 10h ikupera, ndiyeno kutsukidwa, zouma ndi kuphwanyidwa kuti mupeze chitsulo okusayidi. mankhwala ofiira. Iron okusayidi yellow angagwiritsidwenso ntchito ngati zopangira, ndi chitsulo okusayidi wofiira angapezeke mwa calcination pa 600 ~ 700 °C.
ntchito
Ndi inorganic pigment ndipo amagwiritsidwa ntchito ngati anti- dzimbiri pigment mu makampani zokutira. Amagwiritsidwanso ntchito ngati utoto wa rabala, nsangalabwi yokumba, terrazzo pansi, zopaka utoto ndi zodzaza mapulasitiki, asibesitosi, zikopa zopanga, phala lachikopa, ndi zina zotero, kupukuta zida zolondola ndi magalasi owoneka bwino, ndi zida zopangira kupanga zigawo za maginito ferrite.
chitetezo
Amalongedzedwa m'matumba oluka okhala ndi matumba apulasitiki a polyethylene, kapena opakidwa m'matumba a mapepala a 3-wosanjikiza, okhala ndi ukonde wolemera 25kg pa thumba. Iyenera kusungidwa pamalo ouma, osanyowa, kupewa kutentha kwambiri, ndipo iyenera kukhala yolekanitsidwa ndi asidi ndi zamchere. Nthawi yabwino yosungirako phukusi losatsegulidwa ndi zaka 3. Kuopsa ndi chitetezo: Fumbi limayambitsa pneumoconiosis. Pazipita zololeka ndende mu mpweya, iron okusayidi aerosol (mwaye) ndi 5mg/m3. Samalani fumbi.
