Input interpretation
![niobium pentoxide](../image_source/637db7b44e6acc5172a094591abf7a6c.png)
niobium pentoxide
Chemical names and formulas
![formula | Nb_2O_5 name | niobium pentoxide alternate names | columbium pentoxide | diniobium pentaoxide | niobium oxide | niobium(V) oxide mass fractions | Nb (niobium) 69.9% | O (oxygen) 30.1%](../image_source/5273eebc2112a04e89be8cb15a8e6f60.png)
formula | Nb_2O_5 name | niobium pentoxide alternate names | columbium pentoxide | diniobium pentaoxide | niobium oxide | niobium(V) oxide mass fractions | Nb (niobium) 69.9% | O (oxygen) 30.1%
Structure diagram
![Structure diagram](../image_source/ed515f43d011a7ff7101115e590b3fff.png)
Structure diagram
![vertex count | 7 edge count | 6 Schultz index | 176 Wiener index | 48 Hosoya index | 15 Balaban index | 2.953](../image_source/8eafd54173be99fbe89c12e498c10922.png)
vertex count | 7 edge count | 6 Schultz index | 176 Wiener index | 48 Hosoya index | 15 Balaban index | 2.953
Basic properties
![molar mass | 265.808 g/mol phase | solid (at STP) melting point | 1496 °C density | 4.47 g/cm^3](../image_source/74ffb910180b67feeaa3453bebeaab93.png)
molar mass | 265.808 g/mol phase | solid (at STP) melting point | 1496 °C density | 4.47 g/cm^3
Units
Solid properties (at STP)
![density | 4.47 g/cm^3 refractive index | 1.7](../image_source/ecfbacb2c8a3156f8ae622fcbb8e0f29.png)
density | 4.47 g/cm^3 refractive index | 1.7
Units
Thermodynamic properties
![specific heat capacity c_p | solid | 0.497 J/(g K) molar heat capacity c_p | solid | 132.1 J/(mol K) specific free energy of formation Δ_fG° | solid | -6.644 kJ/g molar free energy of formation Δ_fG° | solid | -1766 kJ/mol specific heat of formation Δ_fH° | solid | -7.146 kJ/g molar heat of formation Δ_fH° | solid | -1900 kJ/mol molar heat of vaporization | 535.7 kJ/mol | specific heat of vaporization | 2.015 kJ/g | molar heat of fusion | 104.3 kJ/mol | specific heat of fusion | 0.3924 kJ/g | (at STP)](../image_source/7c2eaadcb35f358aaf33993321315bbc.png)
specific heat capacity c_p | solid | 0.497 J/(g K) molar heat capacity c_p | solid | 132.1 J/(mol K) specific free energy of formation Δ_fG° | solid | -6.644 kJ/g molar free energy of formation Δ_fG° | solid | -1766 kJ/mol specific heat of formation Δ_fH° | solid | -7.146 kJ/g molar heat of formation Δ_fH° | solid | -1900 kJ/mol molar heat of vaporization | 535.7 kJ/mol | specific heat of vaporization | 2.015 kJ/g | molar heat of fusion | 104.3 kJ/mol | specific heat of fusion | 0.3924 kJ/g | (at STP)
Chemical identifiers
![CAS number | 1313-96-8 PubChem CID number | 123105 PubChem SID number | 24852077 SMILES identifier | O=[Nb](=O)O[Nb](=O)=O InChI identifier | InChI=1/2Nb.5O/rNb2O5/c3-1(4)7-2(5)6 RTECS number | QU0500000 MDL number | MFCD00011128](../image_source/9e1bfdd7eb1eea804f20dec6c5f0e94b.png)
CAS number | 1313-96-8 PubChem CID number | 123105 PubChem SID number | 24852077 SMILES identifier | O=[Nb](=O)O[Nb](=O)=O InChI identifier | InChI=1/2Nb.5O/rNb2O5/c3-1(4)7-2(5)6 RTECS number | QU0500000 MDL number | MFCD00011128
Toxicity properties
![RTECS classes | other](../image_source/297fb31edc1f7e5c36b9fba70039eba3.png)
RTECS classes | other