I-CALCIUM METALI

Kukho iindlela ezimbini zokuvelisa i-metallic calcium.Enye yindlela ye-electrolytic, evelisa i-calcium yensimbi enobunyulu ngokubanzi ngaphezu kwe-98.5%.Emva kwe-sublimation eyongezelelweyo, inokufikelela kubunyulu obungaphezulu kwe-99.5%.Olunye uhlobo yintsimbi ye-calcium eveliswa yindlela ye-aluminothermal (ekwabizwa ngokuba yi-slurry method), ngococeko olumalunga nama-97%.Emva kwe-sublimation eyongezelelweyo, ubunyulu bunokuphuculwa ukuya kwinqanaba elithile, kodwa ezinye izinto ezingcolileyo ezifana ne-magnesium kunye ne-aluminium zinomxholo ophezulu kune-electrolytic metal calcium.

Silver white light metal.Ubume obuthambileyo.Ubuninzi be-1.54 g / cm3.Indawo yokunyibilika 839 ± 2 ℃.Indawo yokubilisa 1484 ℃.I-valence edibeneyo+2.Amandla e-ionization yi-6.113 electron volts.Iimpawu zeMichiza ziyasebenza kwaye zinokusabela ngamanzi kunye ne-asidi, zivelisa igesi ye-hydrogen.Umaleko we-oxide kunye nefilimu ye-nitride iya kubumba kumphezulu womoya ukuthintela ukubola okungaphezulu.Xa kushushu, phantse zonke ii-oxide zensimbi zinokuncitshiswa.

Okokuqala, i-metallic calcium ingasetyenziswa njenge-arhente yokunciphisa kwi-metallurgical and chemical industry.Ingasetyenziselwa ukunciphisa i-oxides yesinyithi kunye ne-halides.Ukongeza, i-metallic calcium ingasetyenziselwa ukulungisa ezinye iintsimbi ezinzima ezifunekayo, njenge-zinc, ubhedu kunye nelothe.

Okwesibini, i-metallic calcium nayo idlala indima ebalulekileyo kwimveliso yentsimbi.Icalcium inokongezwa
Ukuphucula ukusebenza kunye nomgangatho wentsimbi.I-calcium inokuphucula amandla kunye nokuqina kwentsimbi, ngelixa iNciphisa i-brittleness yentsimbi.Ukongezelela, ukongeza i-calcium kunokuthintela ukubunjwa kwee-oxides kunye nokungcola kwintsimbi, Ngaloo ndlela kuphuculwe umgangatho wentsimbi.

Ukongeza, i-metallic calcium ingasetyenziselwa ukulungisa ii-alloys ezahlukeneyo.I-calcium inokusebenzisana nezinye izinto zetsimbi Ukuqulunqwa kwe-alloys, njenge-calcium aluminium alloys, i-calcium copper alloys, njl.

Ekugqibeleni, i-metallic calcium ingasetyenziselwa ukulungisa iikhompawundi ezahlukeneyo.Ngokomzekelo, i-calcium inokusebenzisana ne-oxidation Elements ezifana ne-compounds kunye ne-sulfides zenza iikhompawundi ezahlukeneyo, ezifana ne-calcium oxide kunye ne-calcium sulfide.Ezi khompawundi Izinto zisetyenziswa kakhulu ekwenzeni izinto zokwakha, izichumisi, kunye namayeza.

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Ixesha lokuposa: Jan-18-2024