Niobium oxide

Synonym(s):Niobium pentoxide

CAS NO.：1313-96-8
Empirical Formula: Nb2O5
Molecular Weight: 265.81
MDL number: MFCD00011128
EINECS: 215-213-6
SAFETY DATA SHEET (SDS)
Update Date: 2024-08-28 13:53:23

What is Niobium oxide ?

Chemical properties

Niobium(V) oxide is a white crystalline powder and turns into light yellow when meeting oxygen. Insoluble in water, insoluble in acid, soluble in molten potassium hydrogen sulfate or alkali metal carbonate and hydroxide.

Physical properties

White orthogonal crystals; density 4.60 g/cm³; melts at 1,512°C; insoluble in water; soluble in hydrofluoric acid.

The Uses of Niobium oxide

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.

What are the applications of Application

Niobium(V) oxide is an alternative to lithium metal in advanced fuel cells

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.

What are the applications of 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.

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

Properties of Niobium oxide

Melting point:	1520 °C
Density	4.47 g/mL at 25 °C(lit.)
solubility	insoluble in H2O; soluble in HF
form	Powder
color	White to off-white
Specific Gravity	4.6
Resistivity	5.5 ∞ 10*12 (ρ/μΩ.cm)
Water Solubility	insoluble
Crystal Structure	Trigonal
Merck	14,6559
Stability:	Stable.
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 information for Niobium oxide

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up.