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Merck
CN

718467

Titanium dioxide

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

Synonym(s):

Nanotitania, TiO₂ nanopowder, TiO2 nanopowder, Titanium(IV) oxide, Titania, Titanium dioxide

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About This Item

Linear Formula:
TiO2
CAS Number:
13463-67-7
Molecular Weight:
79.87
NACRES:
NA.23
PubChem Substance ID:
329763580
UNSPSC Code:
12352302
EC Number:
236-675-5
MDL number:
MFCD00011269

Key Documents

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Product Name

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

InChI

1S/2O.Ti

InChI key

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

SMILES string

O=[Ti]=O

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.)

Quality Level

100

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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.

General description

Our titanium(IV) oxide nanopowder is a fine white powder composed of titanium dioxide nanoparticles with an average particle size of 21 nm, resulting in a high surface area of 35-65 m2/g. 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.

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX1672
MKCV9872
MKCV6620
0000266592
0000227071

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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)
Remediation of Antiseptic Components in Wastewater by Photocatalysis Using TiO2 Nanoparticles
Das R, et al.
Industrial & Engineering Chemistry Research, 53(8), 3012-3020 (2014)
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)
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
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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