Pom qhov twg samarium?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Samarium yog qhov thib tsib tshaj plaws ntawm cov ntsiab lus tsis tshua muaj thiab yuav luag plaub zaug ntau dua li cov tin. Nws yeej tsis pom muaj dawb hauv cov xwm txheej, tab sis muaj nyob hauv ntau cov zaub mov, suav nrog monazite, bastnasite thiab samarskite. Samarium muaj ore muaj nyob hauv Teb chaws USA , Tuam Tshoj , Brazil , Is Nrias teb , Australia thiab Sri Lanka.

Yog li ntawd, Samarium siv qhov twg?

Samarium yog siv dope calcium chloride crystals rau siv nyob rau hauv optical lasers. Nws kuj yog siv nyob rau hauv infrared absorbing iav thiab raws li ib tug neutron absorber nyob rau hauv nuclear reactors. Samarium oxide pom kev siv tshwj xeeb hauv iav thiab ceramics.

Ib yam li ntawd, nyob qhov twg europium pom? Europium yog pom nyob rau hauv lub ores monazite xuab zeb [(Ce, La, etc.) PO₄] and bastn°site [(Ce, La, etc.)(CO₃F], ores muaj me me ntawm tag nrho cov tsis tshua muaj lub ntiaj teb hlau. Nws yog ib qho nyuaj rau cais los ntawm lwm yam tsawg lub ntiaj teb.

Tom qab ntawd, Samarium pom nyob rau hauv dab tsi?

1879

samarium zoo li cas?

Samarium yog ib lub ci, ncaj ncaj, silvery dawb hlau. Nws yog ib qho ntawm cov lanthanide tsawg lub ntiaj teb hlau. Nws yog ruaj khov nyob rau hauv huab cua ntawm ib txwm kub, tab sis ignites nyob rau hauv huab cua thaum kub yog 150 ^oC los yog siab dua. Nyob rau hauv huab cua noo nws tarnishes rau oxide.