Awọn ọja
Scandium, 21Sc | |
Nọmba atomiki (Z) | 21 |
Ipele ni STP | ṣinṣin |
Ojuami yo | 1814 K (1541 °C, 2806 °F) |
Oju omi farabale | 3109 K (2836 °C, 5136 °F) |
iwuwo (nitosi RT) | 2.985 g / cm3 |
nigbati omi (ni mp) | 2,80 g / cm3 |
Ooru ti idapọ | 14,1 kJ / mol |
Ooru ti vaporization | 332,7 kJ / mol |
Molar ooru agbara | 25.52 J/ (mol·K) |
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Oxide Scandium
Scandium(III) Oxide tabi scandia jẹ agbo aibikita pẹlu agbekalẹ Sc2O3. Hihan jẹ itanran funfun lulú ti onigun eto. O ni awọn ọrọ oriṣiriṣi bi scandium trioxide, scandium(III) oxide ati scandium sesquioxide. Awọn ohun-ini physico-kemikali rẹ sunmo pupọ si awọn oxides aiye toje bi La2O3, Y2O3 ati Lu2O3. O jẹ ọkan ninu ọpọlọpọ awọn oxides ti awọn eroja aiye toje pẹlu aaye yo to gaju. Da lori imọ-ẹrọ lọwọlọwọ, Sc2O3/TREO le jẹ 99.999% ni giga julọ. O ti wa ni tiotuka ninu gbona acid, sibẹsibẹ insoluble ninu omi.