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718467

Sigma-Aldrich

Titanium(IV) oxide

Titanium(IV) oxide

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

Synonym(s):

TiO2 nanopowder, Titania, Titanium dioxide

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100 G
$216.00

$216.00

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100 G
$216.00

About This Item

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

$216.00

In StockDetails

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Quality Level

100

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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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.[1]

Application

TiO2 nanoparticles were used to study the photocatalytic hexane vapor degradation.[2] It has been used as a sorbent for arsenic removal.[3] TiO2 nanoparticles are suitable for remediation of antiseptic components in wastewater by photocatalysis.[4] It has also been used to study adsorption of DNA oligonucleotides by titanium dioxide nanoparticles.[5]

Storage Class

13 - Non Combustible Solids

wgk_germany

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
MKCT0035
MKCV0036

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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)
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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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Is the TiO2 in rutile or anatase form in this specific product?

    1 answer

    1. The product 718467 has a mixed rutile/anatase phase. It is 80%/20% anatase/rutile.

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