Substance profile
Divanadium pentaoxide
Divanadium pentaoxide is yellow to rust-brown orthorhombic crystals and is odorless.
01 · Identification
What Divanadium pentaoxide is
Divanadium pentaoxide is yellow to rust-brown orthorhombic crystals and is odorless. Its molecular formula is O5V2 and its molecular weight is 181.88 g/mol. It boils at 1750 °C, melts at 681 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
Other names for Divanadium pentaoxide
- vanadium pentoxide
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H341 | Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H361fd | Suspected of damaging fertility. Suspected of damaging the unborn child. |
| H362 | May cause harm to breast-fed children. |
| H301 | Toxic if swallowed. |
| H330 | Fatal if inhaled. |
| H335 | May cause respiratory irritation. |
| H372 | Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P270, P271, P273, P280, P301, P304, P308, P310, P313, P314, P330, P391, P501
03 · Physical and chemical properties
Divanadium pentaoxide properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 1750 °C (3182 °F) | decomp | HSDB |
| 1750 °C (3182 °F) | at 760 mmHg | DOE PAC | |
| 1750 °C (3182 °F) | decomposes | NIOSH | |
| Melting point | 681 °C (1257.8 °F) | HSDB | |
| 690 °C (1274 °F) | NIOSH | ||
| Density | 3.36 g/cm³ | NIOSH | |
| 3.654 g/cm³ | at 21.7 °C | HSDB | |
| 3.357 g/cm³ | at 18 °C | CAMEO | |
| Solubility | 1 gram dissolves in approximately 125 mL water | HSDB | |
| In water, 904-935.8 mg/L at 20 °C and pH 2.7 | at 20 °C | HSDB | |
| In water, 0.07 g/100 g water at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 0 mmHg | approx | NIOSH |
| 0 mmHg | at 20 °C | HSDB | |
| Lower explosive limit (LEL) | A mixture of the metal and oxidant, contaminated with sulfur and some water led to a serious fire. | HSDB | |
| Noncombustible Solid | NIOSH | ||
| Not flammable. (EPA, 1998) | CAMEO | ||
| Upper explosive limit (UEL) | Not flammable. (EPA, 1998) | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Divanadium pentaoxide
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible materials: Strong acids
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
VANADIUM PENTOXIDE is acidic in many reactions. Hence, soluble in bases. [Kirk-Othmer]. Can react with ClF3, Li, peroxyformic acid and (Ca+S+H2O). Also reacts with strong acids. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Divanadium pentaoxide in the storage compatibility matrix →