Awọn ọja
| Tantalum | |
| Ojuami yo | 3017°C, 5463°F, 3290 K |
| Oju omi farabale | 5455°C, 9851°F, 5728 K |
| Ìwọ̀n (g cm-3) | 16.4 |
| Ojulumo atomiki ibi- | 180.948 |
| Awọn isotopes bọtini | 180Ta, 181Ta |
| AS nọmba | 7440-25-7 |
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Tantalum (V) oxide (Ta2O5 tabi tantalum pentoxide) mimọ 99.99% Cas 1314-61-0
Tantalum (V) oxide (Ta2O5 tabi tantalum pentoxide)ni a funfun, idurosinsin ri agbo yellow. Awọn lulú ti wa ni iṣelọpọ nipasẹ sisọ tantalum kan ti o ni ojutu acid ninu, sisẹ ojoro, ati ṣiṣaro akara oyinbo àlẹmọ. Nigbagbogbo o jẹ ọlọ si iwọn patiku ti o nifẹ lati pade awọn ibeere ohun elo lọpọlọpọ.