Chromium ufa ndi ufa wachitsulo wamba, womwe umagwiritsidwa ntchito kwambiri popanga mitundu yosiyanasiyana yamphamvu kwambiri, ma aloyi osagwirizana ndi dzimbiri ndi zinthu.

Kuyambitsa ufa wa chromium

Chromium ufa ndi ufa wachitsulo wopangidwa ndi chromium, mawonekedwe a molekyulu ndi Cr, kulemera kwa maselo ndi 51.99.Ili ndi mawonekedwe abwino, osalala, siliva oyera kapena imvi, olimba kwambiri.Chromium ufa ndi ufa wofunikira wachitsulo, womwe umagwiritsidwa ntchito kwambiri popanga, zamagetsi, zakuthambo ndi zina.

Thupi ndi mankhwala katundu wa chromium ufa

Zakuthupi za ufa wa chromium zimaphatikizapo kusachulukira kwakukulu, kuwongolera bwino kwamagetsi komanso kukana dzimbiri.Ili ndi kachulukidwe ka 7.2g / cm3, malo osungunuka a 1857 ° C ndi malo otentha a 2672 ° C. Chromium ufa siwophweka kuti oxidize kutentha kwa firiji, uli ndi kukana kwa dzimbiri, ukhoza kukana asidi, alkali, mchere ndi madzi. mankhwala ena dzimbiri.

Mankhwala a chromium ufa amakhala otakasuka ndipo amatha kuchitapo kanthu ndi mankhwala osiyanasiyana.Mwachitsanzo, ufa wa chromium ukhoza kuchitapo kanthu ndi madzi kupanga chromium hydroxide ndikutulutsa haidrojeni.Kuonjezera apo, ufa wa chromium ukhoza kuchitapo kanthu ndi okosijeni ambiri ndikukhala oxidized ku trivalent chromium ions.

Njira yokonzekera ufa wa chromium

Njira zokonzekera ufa wa chromium makamaka zimaphatikizapo njira ya electrolysis, njira yochepetsera ndi njira ya okosijeni.Electrolysis ndi njira wamba kukonzekera kupeza chromium ufa ndi electrolysis wa chromium mchere njira pa kutentha ndi kuthamanga kwambiri.Njira yochepetsera ndikuchitapo kanthu pa chromium ore ndi carbon pa kutentha kwakukulu kuti ipange chromium carbide, kenako ndikuiphwanya kuti ipeze ufa wa chromium.Njira yopangira makutidwe ndi okosijeni ndikuchepetsa momwe chromium oxide pa kutentha kwakukulu imatulutsa ufa wa chromium.Njira zosiyanasiyana zimakhala ndi ubwino ndi zovuta zosiyanasiyana, ndipo njira yoyenera yokonzekera iyenera kusankhidwa malinga ndi zosowa.

Malo ogwiritsira ntchito ufa wa chromium

Minda yogwiritsira ntchito ufa wa chromium ndi yotakata kwambiri, makamaka kuphatikiza zitsulo zopanda chitsulo, zomangira, zopangira zopangira, makampani a batri ndi zina zotero.M'munda wazitsulo zopanda chitsulo, ufa wa chromium ukhoza kugwiritsidwa ntchito popanga mitundu yambiri yamphamvu kwambiri, ma alloys osagwirizana ndi dzimbiri, monga chitsulo chosapanga dzimbiri, chitsulo chachitsulo, chitsulo chothamanga kwambiri ndi zina zotero.Pazinthu zomangira, ufa wa chromium ukhoza kugwiritsidwa ntchito popanga zinthu zosiyanasiyana zosagwirizana ndi dzimbiri, zotentha kwambiri za ceramic ndi magalasi.Pankhani yopangira ma pretreatment, ufa wa chromium ukhoza kugwiritsidwa ntchito kupanga zinthu zosiyanasiyana zosinthira mankhwala, monga ma chromate conversion agents ndi phosphate conversion agents.M'makampani a batri, ufa wa chromium ukhoza kugwiritsidwa ntchito popanga zida zosiyanasiyana zama electrode, monga mabatire a nickel-cadmium ndi mabatire a nickel-metal hydride.

Chromium ufa chitetezo ndi kuteteza chilengedwe

Chromium ufa ndi chinthu choopsa, kuwonetseredwa kwa nthawi yayitali kungayambitse kupsa mtima ndi kuwonongeka kwa khungu la munthu, maso ndi kupuma, ndipo pazovuta kwambiri kungayambitse khansa.Chifukwa chake, popanga, kugwiritsa ntchito ndi kusamalira ufa wa chromium, ndikofunikira kutsatira mosamalitsa njira zoyendetsera chitetezo ndi malamulo achilengedwe.Panthawi imodzimodziyo, njira zoyenera zotayira zinyalala, monga kukwirira mozama, kutentha kapena mankhwala, ziyenera kugwiritsidwa ntchito kuchepetsa kuwononga chilengedwe ndi thanzi la anthu.

Mwachidule, ufa wa chromium ndi ufa wofunikira wachitsulo, womwe uli ndi ntchito zambiri komanso zofunikira zachuma.Pambuyo pomvetsetsa zofunikira zake, njira zokonzekera, minda yogwiritsira ntchito ndi chitetezo ndi chitetezo cha chilengedwe, tikhoza kumvetsa bwino zomwe zikugwirizana ndi zomwe zikugwirizana ndi zomwe zikugwiritsidwa ntchito.Panthawi imodzimodziyo, tiyeneranso kusamala za chitetezo cha chilengedwe ndi thanzi la anthu, ndi kuchepetsa zotsatira za chilengedwe ndi anthu.