As listed in the 'PROPERTIES' section, the particle size is 21 nm by TEM and the surface area is 35-65 m2/g by BET.
718467
Titanium dioxide
Greener Alternative
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:
Molecular Weight:
79.87
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
236-675-5
MDL number:
Pricing and availability is not currently available.
Product Name
Titanium(IV) oxide, nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis
Quality Segment
assay
≥99.5% trace metals basis
form
nanopowder
composition
TiO2
reaction suitability
core: titanium
greener alternative product characteristics
Design for Energy Efficiency
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sustainability
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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.)
application(s)
catalysts
glass & ceramic
perovskite solar cells
greener alternative category
SMILES string
O=[Ti]=O
InChI
1S/2O.Ti
InChI key
GWEVSGVZZGPLCZ-UHFFFAOYSA-N
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.
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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.
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This Item | |||
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| description nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis | description puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5% | description nanopowder, <100 nm particle size (BET), 99.5% trace metals basis | description ReagentPlus®, ≥99% |
| assay ≥99.5% trace metals basis | assay 98.0-100.5%, 99-100.5%, 99.0-100.5% (calc. on dry substance) | assay 99.5% trace metals basis | assay ≥99% |
| form nanopowder | form powder | form nanopowder | form nanoparticles |
| density 4.26 g/mL at 25 °C (lit.) | density 4.26 g/mL at 25 °C (lit.) | density - | density 4.26 g/mL at 25 °C (lit.) |
| mp 1850 °C, >350 °C (lit.) | mp >350 °C (lit.) | mp - | mp >350 °C (lit.) |
| surface area 35-65 m2/g , BET | surface area - | surface area - | surface area - |
| primary particle size 21 nm (TEM) | primary particle size - | primary particle size - | primary particle size - |
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flash_point_f
Not applicable
flash_point_c
Not applicable
Storage Class
11 - Combustible Solids
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i wanted to know about the particle size and surface are (BET)
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How can I determine the shelf life / expiration / retest date of this product?
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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/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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Is the TiO2 in rutile or anatase form in this specific product?
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The product 718467 has a mixed rutile/anatase phase. It is 80%/20% anatase/rutile.
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