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Ihe Ime Anwansi Rare Ụwa: lutetium
Lutetium bụ ihe na-adịghị ahụkebe nke ụwa nwere ọnụ ahịa dị elu, ihe nchekwa pere mpe, yana oke ojiji. Ọ dị nro na soluble n'ime acids dilute, ma nwee ike jiri mmiri jiri nwayọọ meghachi omume. Ndị isotopes na-emekarị gụnyere 175Lu na ọkara ndụ nke 2.1 × 10 ^ 10 afọ β Emitter 176Lu. Emere ya site na ibelata Lu ...GỤKWUO -
Ime Anwansi Rare Ụwa Element – Praseodymium
Praseodymium bụ elementrị lanthanide nke atọ kachasị na tebụl kemịkalụ nke oge, yana 9.5 ppm n'ụba, dị ala karịa cerium, yttrium, lanthanum, na scandium. Ọ bụ mmewere nke ise kachasị n'ụwa. Mana dị ka aha ya, praseodymium bụ ...GỤKWUO -
Barium dị na Bolognite
arium, mmewere 56 nke tebụl oge. Barium hydroxide, barium chloride, barium sulfate… bụ ihe reagents a na-ahụkarị na akwụkwọ ọgụgụ ụlọ akwụkwọ sekọndrị. N'afọ 1602, ndị ọkà mmụta sayensị n'ebe ọdịda anyanwụ chọtara nkume Bologna (nke a na-akpọkwa "sunstone") nke nwere ike ịmịnye ọkụ. Ụdị ọla a nwere obere lum ...GỤKWUO -
Kedu ihe bụ Cerium Oxide?
Cerium oxide bụ ihe inorganic nwere usoro kemịkalụ CeO2, ntụ ntụ inyeaka na-acha odo odo ma ọ bụ odo odo. Njupụta 7.13g/cm3, ebe mgbaze 2397°C, nke a na-apụghị ịsọpụrụ na mmiri na alkali, soluble ntakịrị na acid. Na okpomọkụ nke 2000 Celsius C na nrụgide nke 15MPa, hydrogen nwere ike iji mee ka ...GỤKWUO -
Ngwa nke nano cerium oxide na polymer
Nano-ceria na-eme ka nguzogide ịka nká ultraviolet nke polymer. Usoro eletrọnịkị 4f nke nano-CeO2 na-enwe mmetụta nke ukwuu maka nnabata ọkụ, yana eriri absorption na-abụkarị na mpaghara ultraviolet (200-400nm), nke na-enweghị njirimara absorption na ìhè a na-ahụ anya na nnyefe dị mma. Ụdị...GỤKWUO -
Ngwa nke scandium oxide Sc2O3 ntụ ntụ
Ngwa nke scandium oxide Usoro kemịkalụ nke scandium oxide bụ Sc2O3. Njirimara: White siri ike. N'usoro cubic nke obere ụwa sesquioxide. Njupụta 3.864. Ebe mgbaze 2403℃ 20℃. Na-adịghị edozi na mmiri, soluble na ọkụ acid. A na-akwado ya site na ire ere nke nnu scandium. Ọ nwere ike ịbụ ...GỤKWUO