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Niobium oxide (1313-96-8)

Identification
Name:Niobium oxide
Synonyms:Biral Nb-X10;Cerac N 1117;Diniobium pentaoxide;HY 340;Niobia;Niobium pentaoxide;Niobium(5+) oxide;Optolake 17;
CAS:1313-96-8
EINECS: 215-213-6
Molecular Formula: Nb2O5
Molecular Weight: 265.81
InChI: InChI=1/2Nb.5O/rNb2O5/c3-1(4)7-2(5)6
Molecular Structure: (Nb2O5) Biral Nb-X10;Cerac N 1117;Diniobium pentaoxide;HY 340;Niobia;Niobium pentaoxide;Niobium(5+) oxide;Op...
Properties
Flash Point: °C
Boiling Point: °Cat760mmHg
Density:4.47
Stability:Stable.
Refractive index:1.7
Water Solubility:insoluble
Solubility:insoluble in water
Appearance:off-white powder solid.
Specification:

The Niobium(V) oxide, with the cas registry number 1313-96-8, is a kind of white crystalline powder. This chemical is stable chemically and is insoluble in water and acid, and it belongs to the product categories of Inorganics.

The characteristics of this chemical are as follows: (1)#H bond acceptors: 5; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 2; (4)Polar Surface Area: 77.51; (5)Exact Mass: 265.787328; (6)MonoIsotopic Mass: 265.787328; (7)Topological Polar Surface Area: 77.5; (8)Heavy Atom Count: 7; (9)Complexity: 124.

The chemical could be produced through the following list of reactions, according to the equation: 3Nb+5HNO3+21HF→3H2NbF7+5NO+10H2O; H2NbF7+7NH4OH→Nb(OH)5+7NH4F+2H2O; 2Nb(OH)5→2Nb(OH)5+5H2O.

As to its usage, it is widely applied in many ways. It could be used as the raw material of niobium metal and also be used in the optical glass and electronic industry; It could also be used as the catalytic agent and refractory matter.

When you are dealing with this chemical, you should be very cautious. For being a kind of chemical irritating to eyes, respiratory system and skin, it may cause inflammation to the skin or other mucous membranes. Therefore, you should wear suitable protective clothing, gloves and eye/face protection, and if in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

In addition, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: O=[Nb](=O)O[Nb](=O)=O
(2)InChI: InChI=1S/2Nb.5O
(3)InChIKey: ZKATWMILCYLAPD-UHFFFAOYSA-N 

Below are the toxicity information of this chemical:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD intraperitoneal > 10gm/kg (10000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 35(4), Pg. 38, 1991.
mouse LD50 oral > 4gm/kg (4000mg/kg) BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)

LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA

LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), DIFFUSE"		 Hygiene and Sanitation Vol. 32(10-12), Pg. 343, 1967.
rat LD intraperitoneal > 10gm/kg (10000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 35(4), Pg. 38, 1991.
rat LD oral > 10gm/kg (10000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 35(4), Pg. 38, 1991.

Report:

 Niobium(V) oxide (CAS NO.1313-96-8) is reported in EPA TSCA Inventory.

Flash Point: °C
Storage Temperature: Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Usage:Used mainly in the production of capacitors, lithium niobate, and optical glass.
Safety Data
Hazard Symbols Xi:Irritant
 

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