I-CALCIUM METALI

Kunezindlela ezimbili zokukhiqiza ze-metallic calcium.Enye indlela ye-electrolytic, ekhiqiza i-metallic calcium ngobumsulwa ngokuvamile obungaphezu kwama-98.5%.Ngemuva kokwehliswa okwengeziwe, ingafinyelela ubumsulwa obungaphezu kwama-99.5%.Olunye uhlobo i-calcium yensimbi ekhiqizwa indlela ye-aluminothermal (eyaziwa nangokuthi indlela ye-slurry), enobumsulwa obucishe bube ngu-97%.Ngemuva kokuphinda kuncishiswe, ubumsulwa bungathuthukiswa ngokwezinga elithile, kodwa okunye ukungcola okufana ne-magnesium ne-aluminium kunokuqukethwe okuphezulu kune-electrolytic metal calcium.

Insimbi ekhanyayo emhlophe esiliva.Ukuthungwa okuthambile.Ukuminyana okungu-1.54 g/cm3.Iphoyinti lokuncibilika 839 ± 2 ℃.Iphoyinti lokubilisa 1484 ℃.I-valence+2 ehlanganisiwe.Amandla e-ionization angu-6.113 electron volts.Izici zamakhemikhali ziyasebenza futhi zingasabela ngamanzi ne-asidi, zikhiqize igesi ye-hydrogen.Ungqimba lwefilimu ye-oxide ne-nitride luzokwakheka ebusweni bomoya ukuvimbela ukugqwala okuqhubekayo.Lapho kushisa, cishe wonke ama-oxide ensimbi angancishiswa.

Okokuqala, i-metallic calcium ingasetshenziswa njenge-ejenti yokunciphisa izimboni ze-metallurgical kanye namakhemikhali.Ingasetshenziselwa ukunciphisa ama-oxide ensimbi nama-halides.Ngaphezu kwalokho, i-metallic calcium ingasetshenziswa futhi ukulungisa ezinye izinsimbi ezisindayo Izinsimbi ezidingekayo, njenge-zinc, ithusi, nomthofu.

Okwesibili, i-metallic calcium nayo idlala indima ebalulekile ekukhiqizeni insimbi.I-calcium ingezwa
Ukuthuthukisa ukusebenza kanye nekhwalithi yensimbi.I-calcium ingathuthukisa amandla nokuqina kwensimbi, kuyilapho Yehlisa ukushwabana kwensimbi.Ngaphezu kwalokho, ukwengeza i-calcium kungavimbela ukwakheka kwama-oxide nokungcola ensimbi, ngaleyo ndlela kuthuthukise izinga lensimbi.

Ngaphezu kwalokho, i-metallic calcium ingasetshenziswa futhi ukulungisa ama-alloys ahlukahlukene.I-calcium ingakwazi ukusebenzisana nezinye izakhi zensimbi Ama-alloys okubunjwa, njengama-alloys e-calcium aluminium, ama-alloys ethusi e-calcium, njll. Lawa ma-alloys anezakhiwo eziningi ezikhethekile ezibonakalayo Futhi izakhiwo zawo zamakhemikhali zingasetshenziswa ukwenza izinto ezihlukahlukene kanye nezinto eziqhutshwayo.

Ekugcineni, i-metallic calcium ingasetshenziswa futhi ukulungisa izinhlanganisela ezihlukahlukene.Isibonelo, i-calcium ingasebenzisana ne-oxidation Izinto ezifana nezinhlanganisela nama-sulfide zakha inhlanganisela ehlukahlukene, njenge-calcium oxide ne-calcium sulfide.Lezi zinhlanganisela Izinto zisetshenziswa kakhulu ekwenzeni izinto zokwakha, umanyolo, kanye nemithi.

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Isikhathi sokuthumela: Jan-18-2024