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634662

Sigma-Aldrich

Titanium(IV) oxide, mixture of rutile and anatase

nanopowder, <100 nm particle size (BET), 99.5% trace metals basis

Synonym(s):

Titanium dioxide

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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:
24882641
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

100

Assay

99.5% trace metals basis

form

nanopowder

particle size

<100 nm (BET)
<50 nm (XRD)

SMILES string

O=[Ti]=O

InChI

1S/2O.Ti

InChI key

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

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General description

Titanium(IV) oxide, mixture of rutile and anatase (TiO2) nanopowder is a photocatalytic material with anatase and rutile as the crystalline phases. The two minerals are utilized in photocatalysis due to their efficient charge separation across phase junctions.[1][2]

Application

Photoelectrodes of varying properties can be made using colloidal suspensions of titanium(IV) oxide nanoparticles.[3]
TiO2 can be used in a variety of medical implants, such as dental implants, spinal fixations, and joint replacements.[4] It can also be used in a stable colloidal solution for the formation of RPMI cell culture medium.[5] It forms a conductive layer in the fabrication of dye sensitized solar cells.[6]

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000362105
0000362105
0000300599
0000300599
MKCW8474

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Induction of cell death by TiO2 nanoparticles: studies on a human monoblastoid cell line
Vamanu CI, et al.
Toxicology in vitro, 22(7), 1689-1696 (2008)
Substrates for flexible electronics: A practical investigation on the electrical, film flexibility, optical, temperature, and solvent resistance properties
Zardetto V, et al.
Journal of Polymer Science. Part B, Polymer Physics, 49(9), 638-648 (2011)
Effects of material properties on sedimentation and aggregation of titanium dioxide nanoparticles of anatase and rutile in the aqueous phase
Liu X, et al.
Journal of Colloid and Interface Science, 363(1), 84-91 (2011)
A E Desjardins et al.
Optics express, 15(10), 6200-6209 (2007-05-14)
We present a novel method for rapidly acquiring optical coherence tomography (OCT) images at multiple backscattering angles. By angularly compounding these images, high levels of speckle reduction were achieved. Signal-to-noise ratio (SNR) improvements of 3.4 dB were obtained from a
Elina A Genina et al.
Journal of biomedical optics, 18(11), 111406-111406 (2013-07-17)
Fractional laser ablation is one of the relatively safe and minimally invasive methods used to administer micro- and nanoparticles into the skin at sufficiently large depth. In this article, we present the results of delivery of TiO₂ nanoparticles and Al₂O₃
View All Related Papers

Questions

1–4 of 4 Questions  

  1. Would like to know the surface area of the nanoparticle?

    1 answer

    1. The surface area for this product is not determined.

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  2. I would like to know if you have the size distribution for these nanoparticles available. And if you have microscopy images. Thanks

    1 answer

    1. The particle size distribution of this material is not tested on a lot-to-lot basis. However, historical data indicates a typical range of 25 - 65 nm with a maximum particle size of 100 nm. Unfortunately, images are not available.

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  3. is it soluble ?

    1 answer

    1. This product is not soluble in water. Historical data indicates that this material is soluble in hot, concentrated sulfuric acid or hydrofluoric acid. Note that product 700347 is a 40% dispersion of this compound in water. Please see the link below to review this product option:
      https://www.sigmaaldrich.com/product/aldrich/700347

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  4. Percentage of rutile and anatase in this mixedphase please?

    1 answer

    1. The ratio of rutile to anatase is approximately 55 parts rutile to 100 parts anatase or approximately 35% rutile and 65% anatase.

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