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14021

Sigma-Aldrich

Titanium(IV) oxide

ReagentPlus®, ≥99%

Synonym(s):

Titania, Titanium dioxide

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About This Item

Linear Formula:
TiO2
CAS Number:
Molecular Weight:
79.87
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.55
Assay:
≥99%
form:
nanoparticles
Pricing and availability is not currently available.

Quality Level

product line

ReagentPlus®

Assay

≥99%

form

nanoparticles

loss

≤0.5% loss on ignition, 1000 °C, 2 h

mp

>350 °C (lit.)

density

4.26 g/mL at 25 °C (lit.)

cation traces

As: ≤5 mg/kg
Fe: ≤50 mg/kg
Pb: ≤50 mg/kg

SMILES string

O=[Ti]=O

InChI

1S/2O.Ti

InChI key

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

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General description

Titanium dioxide (TiO2, titania) is one of the most important materials having various important applications, such as water and air purification, self-cleaning materials and photovoltaic cells. TiO2 is an n-type semiconductor having a wide band gap (3.2eV for anatase and 3.0eV for rutile). Deposition of thin films of TiO2 doped with Mn on F-doped SnO2-coated glass by spin coating has been described. Deposition of thin films of titanium dioxide (TiO2) on various substrates by a simple sol-gel dip coating technique has been proposed.[1] It has various photocatalytic applications where it can be used in two forms, i.e as highly dispersed fine particles on porous support materials and as suspended fluids in liquid medium.[2]

Application

Titanium (IV) oxide may be used as a photocatalyst material, due to its ability to absorb solar energy and light induced reactivity with water and hence it finds applications in environmental photocatalytic water purification.[3][4] Titanium (IV) oxide nanomaterials, which are found to be biocompatible and environment friendly, may find applications in optical biosensors.[5]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Titanium dioxide photocatalysis
Fujishima A, et al.
Journal of Photochemistry and Photobiology, C: Photochemistry Reviews, 1(1), 1-21 (2000)
Titanium dioxide nanomaterials for sensor applications
Bhai J and Zhou B
Chemical Reviews, 114(19), 10131-10176 (2014)
Preparation of titanium (IV) oxide thin film photocatalyst by sol-gel dip coating.
Sonawane RS, et al.
Materials Chemistry and Physics, 77(3), 744-750 (2003)
Defect chemistry of titanium dioxide. Application of defect engineering in processing of TiO2-based photocatalysts
Nowotny.K.M, et al.
The Journal of Physical Chemistry C, 112(14), 5275-5300 (2008)
Multivalent Mn-doped TiO2 thin films.
Lin CYW, et al.
Physica E: Low-Dimensional Systems and Nanostructures, 44(!0), 1969-1972 (2012)

Questions

1–4 of 4 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

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  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. What is the particle diameter of this powder??

    1 answer
    1. The particle size of this material is not determined. However, hisorical data suggests a particle size of 40 um or less.

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  4. What percent anatase/rutile is the ReagentPlus TiO2?

    1 answer
    1. Historical data indicates that this product is the anatase form.

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