Khoom
| Niobium (nb) | |
| Theem ntawm STP | khov kho |
| Melting taw tes | 2750 K (2477 ° C, 4491 ° F) |
| Kub taw tes | 5017 K (4744 ° C, 8571 ° F) |
| Ntom ntom ntom ntom (ze RT) | 8.57 g / cm3 |
| Tshav kub ntawm fusion | 30 KJ / MOL |
| Tshav kub ntawm vaporization | 689.9 KJ / Mol |
| Mev khuam pob muaj peev xwm ua kom sov | 24.60 J / (Molm K) |
| Kev tshwm sim | Grey Metallic, Bluish Thaum Oxidized |
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Qib Qib Siab Niobium oxide (Nb2o5) Hmoov assay Min.99.99%
Niobium oxide, qee zaum hu ua Columbium oxide, ntawm Urbanmines xa mus rauNiobium pentoxide(Niobium (v) oxide), nb2o5. Niobium oxide yog qee zaum hu ua Niobia.