Substance profile
Titanium dioxide
Titanium dioxide is white, tetragonal crystals and is odorless.
01 · Identification
What Titanium dioxide is
Titanium dioxide is white, tetragonal crystals and is odorless. Its molecular formula is O2Ti and its molecular weight is 79.866 g/mol. It boils at 2500 °C, melts at 1855 °C, is practically insoluble in water.
Under the GHS it carries the signal word Warning.
Other names for Titanium dioxide
- titania
- TiO2
- A 100
- A 200
- A 200 (Pigment)
- A-Fil Cream
- A-Fn 3
- Aerosil P 25
- Aerosil P 25S6
- Aerosil P 27
- Aerosil T 805
- Af-E 3D
- Ak 15
- Ak 15 (Pigment)
- [in powder form containing 1 % or more of particles with aerodynamic diameter ≤ 10 μm]
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 |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
03 · Physical and chemical properties
Titanium dioxide 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 | 2500 °C (4532 °F) | HSDB | |
| 2500 °C (4532 °F) | at 760 mmHg | CAMEO | |
| Melting point | 1855 °C (3371 °F) | HSDB | |
| Density | 4.23 g/cm³ | HSDB | |
| 4.17 g/cm³ | HSDB | ||
| 4.26 g/cm³ | NIOSH | ||
| Solubility | Insoluble in water | HSDB | |
| Soluble in hot concentrated sulfuric acid; in hydrofluoric acid; insoluble in hydrochloric acid, nitric acid or diluted sulfuric acid | HSDB | ||
| INSOL IN ORG SOLVENTS | HSDB | ||
| Vapor pressure | 0 mmHg | approx | NIOSH |
| 0 mmHg | at 20 °C | CAMEO | |
| Lower explosive limit (LEL) | Noncombustible Solid | NIOSH |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Titanium dioxide
Incompatible materials
The reaction of lithium and titanium dioxide occurs around 200 °C with a flash of light; the temperature can reach 900 °C.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
TITANIUM DIOXIDE is incompatible with strong oxidizers and strong acids. Violent or incandescent reactions may occur with metals (e.g. aluminum, calcium, magnesium, potassium, sodium, zinc and lithium). (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Titanium dioxide in the storage compatibility matrix →
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