Rare Earth Elements | Scandium (Sc)

 

https://www.xingluchemical.com/high-quality-rare-earth-scandium-metal-sc-metal-with-factory-price-products/Ka 1879, liprofesa tsa k'hemistri tsa Sweden LF Nilson (1840-1899) le PT Cleve (1840-1905) ba ile ba fumana ntho e ncha ho liminerale tse sa tloaelehang tsa gadolinite le ore e ntšo ea khauta e sa tloaelehang hoo e ka bang ka nako e le 'ngoe. Ba rehile ntho ena "Scandium", e neng e le "boron joaloka" element e boletsoeng esale pele ke Mendeleev. Ho sibolloa ha bona ho boetse ho paka ho nepahala ha molao oa nakoana oa likarolo le ponelo-pele ea Mendeleev.

 

Ha ho bapisoa le likarolo tsa lanthanide, scandium e na le radius e nyenyane haholo ea ionic le alkalinity ea hydroxide e boetse e fokola haholo. Ka hona, ha li-scandium le likarolo tse sa tloaelehang tsa lefats'e li kopantsoe hammoho, li phekoloa ka ammonia (kapa alkali e hlapollang haholo), 'me scandium e tla theoha pele. Ka hona, e ka aroloa habonolo le likarolo tse sa tloaelehang tsa lefats'e ka mokhoa oa "graded precipitation". Mokhoa o mong ke ho sebelisa polar decomposition ea nitrate bakeng sa karohano, hobane scandium nitrate ke eona e bonolo ka ho fetisisa ea ho senya, e le ho finyella morero oa ho arohana.

 

Scandium tšepe e ka fumanoa ka electrolysis. Nakong ea ho hloekisa scandium,ScCl3, KCl, le LiCl lia qhibiliha, 'me zinki e qhibilihisitsoeng e sebelisoa e le cathode bakeng sa electrolysis ho hlahisa scandium holim'a electrode ea zinki. Joale, zinki e fetoha mouoane ho fumana tšepe ea scandium. Ho feta moo, ho bonolo ho khutlisa scandium ha ho etsoa ore ho hlahisa uranium, thorium le lanthanide elements. Ho hlaphoheloa ka botlalo ha scandium e tsamaeang le merafo ea tungsten le thini le eona ke mohloli oa bohlokoa oa scandium. Scandium e maemong a trivalent ka har'a metsoako 'me e na le oxidized habonoloSc2O3moeeng, e lahleheloang ke tšepe ea tšepe 'me e fetoha bohlooho bo lefifi. Scandium e khona ho sebetsana le metsi a chesang hore e lokolle haedrojene 'me e qhibiliha habonolo ka li-acids, e leng se etsang hore e fokotsehe ka matla. Li-oxide le li-hydroxide tsa scandium li bonts'a feela alkalinity, empa molora oa tsona oa letsoai ha o khone ho hydrolyzed. Chloride ea scandium ke kristale e tšoeu e qhibilihang habonolo metsing 'me e ka senyeha moeeng. Lisebelisoa tsa eona tse kholo ke tse latelang.

 

(1) Ka indasteri ea metallurgical, scandium e atisa ho sebelisoa ho etsa li-alloys (li-additives bakeng sa li-alloys) ho ntlafatsa matla a tsona, ho thatafala, ho hanyetsa mocheso le tshebetso. Ka mohlala, ho eketsa palo e nyenyane ea scandium ho tšepe e qhibilihisitsoeng ho ka ntlafatsa haholo thepa ea tšepe e entsoeng ka tšepe, ha ho eketsa tekanyo e nyenyane ea scandium ho aluminium ho ka ntlafatsa matla a eona le ho hanyetsa mocheso.

 

(2) Lefapheng la elektronike, scandium e ka sebelisoa e le lisebelisoa tse sa tšoaneng tsa semiconductor, tse kang ho sebelisoa ha scandium sulfite ho li-semiconductors, tse khahlileng tlhokomelo ka hare ho naha le linaheng tse ling. Li-ferrite tse nang le scandium le tsona li na le ts'ebeliso e ts'episang ho li-cores tsa khomphutha.

 

(3) Ka indasteri ea lik'hemik'hale, metsoako ea scandium e sebelisoa e le li-catalysts tse sebetsang hantle bakeng sa joala dehydrogenation le dehydration tlhahiso ea ethylene le tlhahiso ea chlorine ho tloha litšila hydrochloric acid.

 

(4) Ka indasteri ea khalase, khalase e khethehileng e nang le scandium e ka etsoa.

 

(5) Ka indasteri ea mohloli oa leseli la motlakase, mabone a sodium a scandium a entsoeng ka scandium le sodium a na le melemo ea bokhoni bo phahameng le 'mala o khanyang.

 

Scandium e teng ka sebopeho sa 15Sc ka tlhaho, hape ho na le li-isotopes tse 9 tsa radioactive tsa scandium, e leng 40-44Sc le 16-49Sc. Har'a tsona, 46Sc e 'nile ea sebelisoa e le mohlala oa lik'hemik'hale, metallurgical le oceanographic. Ho tsa bongaka, ho boetse ho na le lithuto tsa kantle ho naha tse sebelisang 46Sc ho phekola mofetše.

https://www.xingluchemical.com/high-quality-rare-earth-scandium-metal-sc-metal-with-factory-price-products/

 


Nako ea poso: Apr-19-2023