718467

Titanium(IV) oxide

nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis

• Synonym(s): Titania, Titanium dioxide
• Linear Formula: TiO₂
• CAS Number: 13463-67-7
• Molecular Weight: 79.87
• EC Number: 236-675-5
• MDL number: MFCD00011269
• PubChem Substance ID: 329763580
• NACRES: NA.23

Properties

• Quality Level: 100
• Assay: ≥99.5% trace metals basis
• form: nanopowder
• primary particle size: 21 nm (TEM)
• surface area: 35-65 m²/g (BET)
• mp: 1850 °C; >350 °C (lit.)
• density: 4.26 g/mL at 25 °C (lit.)
• SMILES string: O=[Ti]=O
• InChI: 1S/2O.Ti
• InChI key: GWEVSGVZZGPLCZ-UHFFFAOYSA-N

Description

General description

Two main physico-chemically distinct polymorphs of TiO₂ are anatase and rutile. Anatase has a higher photocatalytic activity than rutile but is thermodynamically less stable.

Application

TiO₂ nanoparticles were used to study the photocatalytic hexane vapor degradation. It has been used as a sorbent for arsenic removal. TiO₂ nanoparticles are suitable for remediation of antiseptic components in wastewater by photocatalysis. It has also been used to study adsorption of DNA oligonucleotides by titanium dioxide nanoparticles.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable