Niobium oxide
- Product Name
- Niobium oxide
- CAS No.
- 1313-96-8
- Chemical Name
- Niobium oxide
- Synonyms
- NIOBIUM(V) OXIDE;NIOBIUM PENTOXIDE;niobia;Niobium oxide (Nb2O5);NIOBIC ACID;Diniobium pentaoxide;Nb2-O5;niobicoxide;NIOBIUM OXIDE;COLUMBOUS ACID
- CBNumber
- CB4466190
- Molecular Formula
- Nb2O5
- Formula Weight
- 265.81
- MOL File
- 1313-96-8.mol
Niobium oxide Property
- Melting point:
- 1520 °C
- Density
- 4.47 g/mL at 25 °C(lit.)
- solubility
- insoluble in H2O; soluble in HF
- form
- Powder
- Specific Gravity
- 4.6
- color
- White to off-white
- Resistivity
- 5.5 ∞ 10*12 (ρ/μΩ.cm)
- Water Solubility
- insoluble
- Crystal Structure
- Trigonal
- crystal system
- Monoclinic
- Merck
- 14,6559
- Space group
- P2/m
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 1.9356 0.38233 2.0375 90 115.72 90 1.3584 - Stability:
- Stable.
- InChIKey
- ZKATWMILCYLAPD-UHFFFAOYSA-N
- CAS DataBase Reference
- 1313-96-8(CAS DataBase Reference)
- NIST Chemistry Reference
- Diniobium pentaoxide(1313-96-8)
- EPA Substance Registry System
- Niobium oxide (Nb2O5) (1313-96-8)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- -
- RTECS
- QU0500000
- TSCA
- Yes
- HS Code
- 28259090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 203920
- Product name
- Niobium(V) oxide
- Purity
- 99.99% trace metals basis
- Packaging
- 10g
- Price
- $98.7
- Updated
- 2025/07/31
- Product number
- 203920
- Product name
- Niobium(V) oxide
- Purity
- 99.99% trace metals basis
- Packaging
- 50g
- Price
- $167
- Updated
- 2025/07/31
- Product number
- 41-5200
- Product name
- Niobium(V) oxide (99.995%-Nb) (50-100ppm Ta) PURATREM
- Packaging
- 25g
- Price
- $88
- Updated
- 2024/03/01
- Product number
- 41-5200
- Product name
- Niobium(V) oxide (99.995%-Nb) (50-100ppm Ta) PURATREM
- Packaging
- 100g
- Price
- $262
- Updated
- 2024/03/01
- Product number
- 208515
- Product name
- Niobium(V) oxide
- Purity
- 325 mesh, 99.9% trace metals basis
- Packaging
- 25g
- Price
- $61
- Updated
- 2025/07/31
Niobium oxide Chemical Properties,Usage,Production
Description
Niobium oxide (N2O5), also named as niobium pentoxide, is used in metallurgy to produce hard materials. Niobium pentoxide is added to the glass during the production of optical lenses to make the lenses lighter, thinner and with greater resilience. At the same time, niobium pentoxide increases the refractive index of optical glasses. In electronics, niobium pentoxide is used to produce multi-layered ceramic capacitors with high capacity and for the preparation of electroacoustic or electrooptical components such as LiNbO3 and KNbO3 or ferroelectric ceramics such as Pb(Mg1/3Nb2/3)O3. It is further used in making cathodes, as pigment in printing, packaging and solid fuels, in food processing industry as dietary supplements, and in the production of powder metallurgy products.
Chemical Properties
Niobium(V) oxide is a white crystalline powder that turns light yellow upon exposure to oxygen. It is insoluble in water and most acids but soluble in molten potassium hydrogen sulfate or alkali metal carbonate and hydroxide.
Its hydrate has the chemical formula Nb₂O₅·xH₂O. It decomposes upon heating and is soluble in concentrated sulphuric acid, concentrated hydrochloric acid, hydrofluoric acid, and strong acids. It is insoluble in water and ammonia solution. It can be obtained by calcining metallic niobium in air or by dehydrating niobium oxide.
Physical properties
Niobium(V) oxide (Nb₂O₅) is a white orthogonal crystals which transforms from an amorphous state to crystalline form upon heating to 380–435°C. At 400–500°C, the presence of oxygen vacancies within the crystal lattice causes it to turn a pale yellow colour (similar to that of zinc oxide).
Nb₂O₅ exhibits multiple crystalline forms, with phase transitions governed by factors including starting material, pressure, and temperature. Over ten common crystal structures exist: monoclinic systems (B, H, N, R, and Z phases); tetragonal systems (P and M phases); orthorhombic systems (T phase); and hexagonal systems (TT phase).
Uses
Niobium(V) oxide is the precursor to a majority of niobium compounds, powder metallurgy products and alloys. It is also used in glass, optic and ceramic applications. The nanoparticles of niobium pentoxide are useful in the preparation of electrochemical capacitors and cathodes. In addition, appropriate preparations of this compound can be used as a dietary supplement in the food industry. It is a precursor to lithium niobate which finds extensive use in piezoelectric sensors, anti-aliasing filters, optical waveguides, mobile phones, surface acoustic devices, optical modulators including linear and non-linear optical applications.
Application
Niobium(V) oxide is used in metallurgy, electronics, optics, and the production of hard materials.
Applied in the solid state formation of an unusual cation deficient perovskite, Ba7Nb4MoO20.
Promising results were obtained using niobium(V) oxide as an alternate electrode to lithium metal in advanced fuel cells.
Niobium Oxide (Nb2O5) is a new electrode material with pseudocapacitive charge storage being introduced to the market for the first time as a potential anode material.
Preparation
Niobium pentoxide is produced as an intermediate during recovery of Nb metal from ores (See niobium).
Also, the pentoxide may be produced by igniting niobium metal powder, niobium carbide, or niobium fluoride in oxygen.
Health Hazard
Niobium pentoxide (Nb2O5) increases both the refractive index of optical glasses and the capacity of multi-layered ceramic capacitors (MLCCs). In contrast to lead oxide, niobium pentoxide poses no health risks.
Flammability and Explosibility
Non flammable
Toxics Screening Level
The screening level for niobium oxide is 0.1 μg/m3 based on annual averaging.
References
[1] https://www.azonano.com/article.aspx?ArticleID=3405
[2] https://en.wikipedia.org/wiki/Niobium_pentoxide
[3] https://www.hcstarck.com
[4] Michel A. Aegerter, Michael Schmitt, and Yeping Guo, Sol-gel niobium pentoxide coatings: Applications to photovoltaic energy conversion and electrochromism, International Journal of Photoenergy, 2002, vol. 4
[5] https://pubchem.ncbi.nlm.nih.gov
[6] I. RYSHCHENKO. Electrochemical Synthesis of Crystalline Niobium Oxide[J]. Materials Science Forum, 2021, 182 1 1: 51-60. DOI:10.4028/www.scientific.net/MSF.1038.51.
[7] SCOTT B. FICARRO. Niobium(V) Oxide (Nb2O5): Application to Phosphoproteomics[J]. Analytical Chemistry, 2008, 80 12: 4606-4613. DOI:10.1021/ac800564h.
Niobium oxide Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Niobium oxide manufacturers
- Product
- Niobium oxide 1313-96-8
- Price
- US $1.00-4.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200000KG
- Release date
- 2025-09-12
- Product
- Niobium oxide 1313-96-8
- Price
- US $5.00-2.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10000kg
- Release date
- 2024-08-22
- Product
- Niobium oxide 1313-96-8
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 10000KG
- Release date
- 2024-08-27