Zosowa zapadziko lapansi ufa zitsulo zowonjezera Samarium zitsulo ufa CAS 7440-19-9 High-Entropy Alloys

Samarium imapezeka ngati zolimba/zojambula zasiliva zamtundu wa siliva kapena ufa wotuwa ndipo ndi yopanda fungo, yoyaka, komanso yopanda madzi. Mitundu yonse ya samarium imadziwika kuti imachita ndi ma dilute acid omwe amatulutsa mpweya woyaka / wophulika wa haidrojeni. Samarium ikakumana ndi madzi imachita ndikumasula mpweya woyaka kwambiri. Samarium sagwirizana ndi asidi amphamvu, oxidizing amphamvu, ndi halogens. Kugwiritsa ntchito kwambiri malonda kwa samarium kuli mu maginito a samarium-cobalt. Maginitowa ali ndi katundu wokhazikika wa maginito. Mankhwala a Samarium asonyezedwa kuti amapirira kutentha kwakukulu, pamwamba pa 700 ° C, popanda kutaya mphamvu zawo zamaginito. The radioactive isotope samarium-153 ndiye chigawo chachikulu cha mankhwala samarium 153Sm lexidronam (Quadramet). Izi zimagwiritsidwa ntchito pochiza khansa ya m'mapapo, prostate, ndi m'mawere ndi osteosarcoma. Samarium imagwiritsidwanso ntchito pothandizira kusintha kwamankhwala, chibwenzi cha radioactive, komanso mu x-ray laser. Samarium imagwiritsidwa ntchito ngati chothandizira pazinthu zina zakuthupi: Samarium iodide (SmI2) imagwiritsidwa ntchito ndi akatswiri ofufuza zamankhwala kuti apange masinthidwe achilengedwe azinthu zachilengedwe. Samarium imapezeka ndikukhazikika mpaka 2.8% mu mchere wambiri kuphatikiza cerite, gadolinite, samarskite, monazite, ndi bastn? Michere imeneyi imapezeka kwambiri ku China, United States, Brazil, India, Sri Lanka, ndi Australia; China ndiye mtsogoleri wapadziko lonse lapansi pazamigodi ndi kupanga samarium. Radioactive isotope samarium-153 ndiye gawo lalikulu la mankhwala samarium (153Sm) lexidronam (Quadramet), yomwe imapha ma cell a khansa pochiza khansa ya m'mapapo, khansa ya prostate, khansa ya m'mawere, ndi osteosarcoma. Isotope, samarium-149, ndi chotengera champhamvu cha nyutroni ndipo chimawonjezeredwa ku ndodo zowongolera za zida zanyukiliya. Samaria oxide imagwiritsidwa ntchito popanga magalasi apadera opangira ma infrared-adsorbing ndi ma cores a carbon arc-lamp oxide electrode komanso ngati chothandizira kutaya madzi m'thupi ndi dehydrogenation ya ethanol. Pawiri wake ndi cobalt (SmCo5) ntchito kupanga latsopano okhazikika maginito zakuthupi. Samarium alibe gawo lachilengedwe, koma adadziwika kuti amalimbikitsa kagayidwe. Mchere wosungunuka wa samarium umakhala woopsa kwambiri pomeza, ndipo pali zoopsa za thanzi zomwe zimagwirizanitsidwa ndi izi chifukwa kukhudzana ndi samarium kumayambitsa khungu ndi maso. Chimodzi mwazinthu zofunikira kwambiri za samarium ndi maginito a samarium-cobalt, omwe ali ndi mawonekedwe a SmCo5 kapena Sm2Co17. Amakhala ndi maginito okhazikika okhazikika, omwe ndi pafupifupi kuwirikiza ka 10,000 kuposa achitsulo ndipo ndiwachiwiri kwa maginito a neodymium. Samarium ndi yosavuta magnetize, koma zovuta demagnetize. Izi zimapangitsa kukhala abwino kwa kupanga maginito okhazikika (SmCo5) omwe ali mbali ya hard disks for computers.Samarium amagwiritsidwanso ntchito ngati nyutroni absorber mu reactors nyukiliya, komanso lasers ndi kafukufuku zitsulo. Zimapanga pafupifupi 1% ya zitsulo mu misch zitsulo, aloyi mu ndudu zoyatsira ndudu. Ndilinso limodzi mwa mayiko angapo osowa omwe amagwiritsidwa ntchito powunikira magetsi komanso magetsi a carbon-arc omwe amagwiritsidwa ntchito ndi makampani opanga zithunzi zoyenda. Samarium amagwiritsidwa ntchito ngati chothandizira m'mafakitale angapo, kuphatikiza dehydrogenation wa mowa wa ethanol. Arylsulfonyl chlorides ndi arylsulfinates amachepetsedwa ndi kuphatikiza kwa samarium ndi titanium(IV) chloride kupanga diaryl disulfides. Ndi nyutroni absorber, dopant kwa makhiristo laser.