Vanadium pentoxide

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VANADIUM PENTOXIDE

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VANADIUM PENTOXIDE

1.

Exposure Data

1.1

Chemical and physical data

1.1.1

Nomenclature 

The nomenclature of selected vanadium compounds is given in Table 1.

Chem. Abstr. Serv. Reg. No.: 1314-62-1

Deleted CAS Reg. No.: 12503-98-9; 56870-07-6; 87854-55-5; 87854-56-6; 166165-

37-3; 172928-47-1; 184892-22-6; 200577-85-1; 203812-34-4; 251927-12-5; 410546-

90-6

Chem. Abstr. Serv. Name: Vanadium oxide (V

2

O

5

)

IUPAC Systematic Name: Vanadium oxide

Synonyms: CI 77938; divanadium pentaoxide; pentaoxodivanadium; vanadic acid

anhydride; vanadin (V) oxide (see also Table 1)

1.1.2

Empirical formula and relative molecular mass

V

2

O

5

Relative molecular mass: 181.88

1.1.3

Chemical and physical properties of the pure substance

(a)

Description: Yellow to rust-brown orthorhombic crystals (O’Neil, 2001; Lide,

2003); yellow-orange powder or dark-gray flakes (Bauer et al., 2003; National

Institute for Occupational Safety and Health, 2005)

(b)

Boiling-point: 1800 °C, decomposes (Lide, 2003)

(c)

Melting-point: 670 °C (Lide, 2003); 690 °C (O’Neil, 2001)

(d ) Density: 3.36 (O’Neil, 2001; Lide, 2003)

(e)

Solubility: Slightly soluble in water (0.1

−0.8 g/100 cm

3

); soluble in concentrated

acids and alkalis; insoluble in ethanol (Woolery, 1997; O’Neil, 2001)

( f ) Stability: Reacts with chlorine or hydrochloric acid to form vanadium oxytri-

chloride; absorbs moisture from the air (ESPI, 1994).

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227

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IARC MONOGRAPHS VOLUME 86

228

Table 1. Nomenclature of selected vanadium compounds 

Molecular 

formula 

Name used in Monograph 

[Registry number] 

Synonyms 

NH

4

VO

3

 

Ammonium metavanadate 

[7803-55-6] 

Ammonium monovanadate 

Ammonium trioxovanadate 

Ammonium trioxovanadate(1-) 

Ammonium vanadate 

Ammonium vanadate(V) 

Ammonium vanadium oxide 

Ammonium vanadium trioxide 

Vanadate (VO

3

–

), ammonium  

Vanadic acid, ammonium salt 

Vanadic acid (HVO

3

), ammonium salt  

Na

3

VO

4

 

Sodium orthovanadate 

[13721-39-6] 

Sodium pervanadate 

Sodium tetraoxovanadate(3-) 

Sodium vanadate 

Sodium vanadate(V) (Na

3

VO

4

) 

Sodium vanadium oxide (Na

3

VO

4

) (9CI) 

Trisodium orthovanadate 

Trisodium tetraoxovanadate 

Trisodium vanadate 

Vanadic acid (H

3

VO

4

), trisodium salt (8CI) 

Vanadic(II) acid, trisodium salt 

VO

2+

 

Vanadyl 

[20644-97-7] 

Oxovanadium(2+) 

Oxovanadium(IV) ion 

Vanadium monoxide(2+) 

Vanadium oxide (VO), ion(2+) 

Vanadium oxide (VO

2+

) 

Vanadyl(II) 

Vanadyl ion(2+) (8CI, 9CI) 

VO

3

–

 

Vanadate 

[13981-20-9] 

Metavanadate 

Metavanadate(1-) 

Trioxovanadate(1-) 

Vanadate (VO

3

–

) 

Vanadate, ion – 

NaVO

4

 

Sodium peroxyvanadate 

[15593-26-7] 

Hydrogen peroxide, vanadium complex 

Peroxyvanadic acid (HVO

2

(O

2

)), sodium salt 

Unspecified 

Sodium vanadium oxide 

[11105-06-9] 

Peroxyvanadic acid, sodium salt 

Sodium peroxyvanadate 

Sodium vanadate 

Vanadic acid, sodium salt 

 

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VANADIUM PENTOXIDE

229

 

 

Table 1 (contd) 

Molecular 

formula 

Name used in Monograph 

[Registry number] 

Synonyms 

VO(SO

4

) 

Vanadyl sulfate 

[27774-13-6] 

Oxo(sulfato)vanadium 

Oxovanadium(IV) sulfate 

Vanadic sulfate 

Vanadium oxide sulfate 

Vanadium(IV) oxide sulfate 

Vanadium oxosulfate 

Vanadium, oxosulfato- (8CI) 

Vanadium, oxo(sulfato(2-)-O)- 

Vanadium, oxo(sulfato(2-)-

κO)- (9CI) 

Vanadium oxysulfate 

Vanadium sulfate 

Unknown 

Ferrovanadium 

[12604-58-9] 

Ferrovanadium alloy 

Ferrovanadium dust 

V

2

O

3

 

Vanadium trioxide 

[1314-34-7] 

Divanadium trioxide 

Vanadic oxide 

Vanadium oxide (V

2

O

3

) (8CI, 9CI) 

Vanadium(3+) oxide 

Vanadium sesquioxide 

Vanadium trioxide 

V

2

O

5

 

Vanadium pentoxide 

[1314-62-1] 

Divanadium pentoxide 

Pentaoxodivanadium 

Vanadia 

Vanadic anhydride 

Vanadium oxide 

Vanadium oxide (V

2

O

5

) (8CI, 9CI) 

Vanadium(V) oxide 

Vanadium pentoxide 

VCl

3

 

Vanadium trichloride 

[7718-98-1] 

Vanadium chloride (VCl

3

) (8CI, 9CI) 

Vanadium(3+) chloride 

Vanadium(III) chloride 

Vanadium trichloride 

From STN International (2003); National Library of Medicine (2003) 

 

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