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Vanadium oxytrichloride

Properties, data and information sources.

 

Contents

Names and Identifiers

Name
Vanadium oxytrichloride
Formula
Cl3OV
VOCl3
Molar mass
173.291 (g/mol)
CAS registry number
7727-18-6
EC number EINECS
231-780-2
InChI Key
JNKMSLLEOBTKQY-UHFFFAOYSA-N

Systematic name
Oxovanadium trihydrochloride

Other names, synonyms
Vanadium trichloride oxide; Vanadium(V) oxidtrichloride; Vanadyl trichloride; Vanadyl chloride; Trichlorooxovanadium; Vanadium oxide trichloride; Vanadium monoxide trichloride

 

Chemical formulas

Molecular formula and structural formula of Vanadium oxytrichloride:

 

Cl3OV or VOCl3

Mr = 173.2905 g/mol

Oxovanadium trihydrochloride
SMILES: O=[V].Cl.Cl.Cl

 

Data and Properties

Vanadium oxytrichloride, in its pure state, is a yellow, hygroscopic liquid that hydrolyzes rapidly even through small traces of moisture.

solubility:
+ Soluble in ethanol, diethyl ether, acetic acid.
- Reacts strongly exothermically with water.
melting point
-76.5 °C
boiling point
126.7 °C
density
1.826 g cm-3 at 20 °C
vapor pressure
1.84 kPa at 20 °C

 

Percentage and isotopic composition:

Mass-related elemental composition and isotope proportions of the compound Vanadium oxytrichloride - Cl3OV - calculated based on molecular mass.

Symbol
Element ENumber x
of atoms ExData of the element
and isotopes *Percentages
of isotopesPercentage of
Ex in formula massCl
Chlorine3 Ar = 35.45 u
ΣAr = 106.35 u
35Cl: 34.96885 u [75,80 %]
36Cl: 35.96831 u [<< 1 %]
37Cl: 36.9659 u [24,2 %] 
35Cl: 46.51917 %
36Cl: trace
37Cl: 14.85177 %
61.3709 %O
Oxygen1ΣAr = 15.999 u
16O: 15.99491 u [99,757 %]
17O: 16.99913 u [0,03835 %]
18O: 17.99916 u [0,205 %] 
16O: 9.21004 %
17O: 0.00354 %
18O: 0.01893 %
9.2325 %V
Vanadium1ΣAr = 50.9415 u
50V: 49.94716 u [0,0250 %]
51V: 50.94396 u [99,750 %] 
50V: 0.00735 %
51V: 29.3231 %
29.3966 %

*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.

 

More calculated data

The molar mass is M = 173.2905 grams per mole.

The amount of substance in one kilogram of the substance is n = 5.771 mol.

The amount of substance in one gram of the substance is n = 0.006 mol.

Monoisotopic mass: 171.845430379 Da - related to 35Cl316O51V.

 

Hazard warnings according to GHS

(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.

Signal word: Danger

GHS hazard statements (H phrases):


H301
Toxic if swallowed

H311
Toxic in contact with skin

H314
Causes severe skin burns and eye damage

H318
Causes serious eye damage

H411
Toxic to aquatic life with long lasting effects

LD50 (rat, oral): 140 mg/kg.

Labeling in the EU: See ECHA Substance Infocard 100.028.892.

For toxicology and occupational safety when handling Vanadium oxytrichloride as well as measures to be taken in case of danger, see: Hazardous Substances Information System GESTIS, ZVG-Nr. 005140.

 

External Sources

PubChem:ID 24410ChemSpider:ID 10613097UNII of the FDA (USA):Unique Ingredient Identifier 839N4FR2H0EPA CompTox Chemicals Dashboard:DTXSID7064784Other CAS RN:204864-21-1 (also used, outdated or deleted registration numbers)

 

Manufacturers and Sources of Supply

The table below lists producers and suppliers of Vanadium oxytrichloride as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.

 

Literature Sources

[0] - Specialist and research articles in scientific journals via PubMed: Vanadium_oxytrichloride.

 

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Last update: 2026-01-12

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