氧化钒

Description

Vanadium oxide · CAS 11099-11-9 · O5V2. UNII BVG363OH7A. Boiling Point: 1750 °C (decomp); Boiling Point: 1750 °C @760 [mm Hg]; Melting Point: 1274 °F (EPA, 1998).

Identification

CAS Registry Number	11099-11-9
PubChem CID	14814
Molecular formula	O5V2
IUPAC name	dioxovanadiooxy(dioxo)vanadium
UNII (FDA)	BVG363OH7A

Computed Descriptors

Molecular Weight	181.88
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	0
Exact Mass	181.862488
Monoisotopic Mass	181.862488
Topological Polar Surface Area	77.5
Heavy Atom Count	7
Formal Charge	0
Complexity	123

Physical & Chemical Properties

Boiling Point	1750 °C (decomp)
Boiling Point	1750 °C @760 [mm Hg]
Melting Point	1274 °F (EPA, 1998)
Melting Point	681 °C
Melting Point	690 °C
Melting Point	1274 °F
Solubility	0.8%
Density	3.36
Density	3.35 @25 °C
Vapor Pressure	0 mmHg (approx)

Physical description & handling notes

• Vanadium pentoxide appears as a yellow to red crystalline powder. Slightly soluble in water and denser than water. Contact may cause severe irritation to skin, eyes, and mucous membranes. May be toxic by ingestion, inhalation and skin absorption.
• Large Crystals; Other Solid; Dry Powder; Dry Powder; Other Solid
• Dry Powder
• Yellow-orange powder or dark-gray, odorless flakes dispersed in air; [NIOSH]
• YELLOW-TO-RED CRYSTALLINE POWDER OR SOLID IN VARIOUS FORMS.
• Yellow-orange powder or dark-gray, odorless flakes dispersed in air.

Regulatory Status

GHS notification summary	66.7% (2 / 3)

GHS Hazard Classification

GHS notification summary	66.7% (2 / 3)
Reported hazard statements	H301, H330, H335, H341, H350, H362, H372, H411

Documented Uses

• Vanadium has been measured in fuel oil at 250 to 400 ppm and in Bessemer slag at 10 to 15% of the weight of the total ash. [ACGIH] Flu ash from oil burning furnaces may contain more than 50% vanadium pentoxide; [ILO Encyclo: Vanadium] Vanadium exposure can also occur in workers cleaning coal furnaces, mining, and producing ferrovanadium. Vanadium is used as a polymer catalyst, dye mordant, and ceramic colorant. [LaDou, p. 481]
• Petroleum Production and Refining [Category: Industry]
• Cleaning Furnaces or Flues [Category: Clean]
• Metal Extraction and Refining [Category: Industry]
• Ceramics making [Category: Hobbies]
• Chemical intermediate; principally a chemical intermediate for vanadium alloys & compounds; oxidation catalyst in many industrial synthesis processes; catalyst in manufacture of sulfuric acid (contact process); oxidation catalyst in automobile catalytic converters; additive to glass for screening UV radiation.

Synonyms

VANADIUM PENTOXIDE; 1314-62-1; Divanadium pentaoxide; Vanadic anhydride; Divanadium pentoxide; Vanadium oxide (V2O5); Vanadin(V) oxide; V2O5; Vanadiumpentoxid; Vanadic acid anhydride; Vanadiumpentoxyde; Anhydride vanadique; Wanadu pieciotlenek; Vanadio, pentossido di; Vanadium, pentoxyde de; CI 77938

Frequently Asked Questions

What are the CAS number and molecular formula of Vanadium oxide?

CAS 11099-11-9; molecular formula O5V2; molecular weight — g/mol.

What other names is Vanadium oxide known by?

VANADIUM PENTOXIDE, 1314-62-1, Divanadium pentaoxide, Vanadic anhydride, Divanadium pentoxide, Vanadium oxide (V2O5).

Is Vanadium oxide classified as hazardous?

66.7% of GHS notifications report no hazard classification (2 of 3).

What are the key physical properties of Vanadium oxide?

Boiling Point: 1750 °C (decomp); Boiling Point: 1750 °C @760 [mm Hg]; Melting Point: 1274 °F (EPA, 1998); Melting Point: 681 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.