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718467

Sigma-Aldrich

Titanium(IV) oxide

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

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Synonym(s):
Titania, Titanium dioxide
Linear Formula:
TiO2
CAS Number:
Molecular Weight:
79.87
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Assay

≥99.5% trace metals basis

form

nanopowder

surface area

35-65 m2/g , BET

primary particle size

21 nm (TEM)

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

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This Item
6774691402114027
Titanium(IV) oxide nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis

Sigma-Aldrich

718467

Titanium(IV) oxide

-
Titanium(IV) oxide contains 1% Mn as dopant, nanopowder, <100 nm particle size (BET), ≥97%

Sigma-Aldrich

677469

Titanium(IV) oxide

-
Titanium(IV) oxide ReagentPlus®, ≥99%

Sigma-Aldrich

14021

Titanium(IV) oxide

-
Titanium(IV) oxide puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5%

Sigma-Aldrich

14027

Titanium(IV) oxide

Essential Grade
form

nanopowder

form

nanopowder

form

nanoparticles

form

powder

mp

1850 °C, >350 °C (lit.)

mp

>350 °C (lit.)

mp

>350 °C (lit.)

mp

>350 °C (lit.)

density

4.26 g/mL at 25 °C (lit.)

density

4.26 g/mL at 25 °C (lit.)

density

4.26 g/mL at 25 °C (lit.)

density

4.26 g/mL at 25 °C (lit.)

surface area

35-65 m2/g , BET

surface area

>14.0 m2/g

surface area

-

surface area

-

primary particle size

21 nm (TEM)

primary particle size

-

primary particle size

-

primary particle size

-

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.

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Remediation of Antiseptic Components in Wastewater by Photocatalysis Using TiO2 Nanoparticles
Das R, et al.
Industrial & Engineering Chemistry Research, 53(8), 3012-3020 (2014)
Removal of arsenic from aqueous solution by two types of nano TiO2 crystals.
Ma L and Tu SX
Environmental Chemistry Letters, 9(4), 465-472 (2011)
Xu Zhang et al.
Langmuir : the ACS journal of surfaces and colloids, 30(3), 839-845 (2014-01-07)
Titanium dioxide (TiO2) or titania shows great promise in detoxification and drug delivery. To reach its full potential, it is important to interface TiO2 with biomolecules to harness their molecular recognition function. To this end, DNA attachment is an important
Photocatalytic degradation of hexane vapors in batch and continuous systems using impregnated ZnO nanoparticles
Saucedo-Lucero JO and Arriaga S
Chemical Engineering Journal, 218, 358-367 (2013)
Shanshan Zhang et al.
Archives of toxicology, 94(4), 1173-1190 (2020-03-13)
Titanium dioxide nanoparticles (TiO2NPs) have been widely used as food additives in daily life. However, the impact of oral intake of TiO2NPs on the nervous system is largely unknown. In this study, 7-week-old mice were treated with either vehicle or

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