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NIST1898

Titanium dioxide

NIST® SRM® 1898, nanomaterial

Sinonimo/i:

Titanium(IV) oxide, Titania, Titanium dioxide

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About This Item

Formula condensata:
TiO2
Numero CAS:
13463-67-7
Peso molecolare:
79.87
Numero MDL:
MFCD00011269
Codice UNSPSC:
41116107
ID PubChem:
329818721
NACRES:
NA.24
Prezzi e disponibilità al momento non sono disponibili

Grado

certified reference material

Livello qualitativo

100

Confezionamento

pkg of 15 g

Produttore/marchio commerciale

NIST®

Punto di fusione

>350 °C (lit.)

Densità

4.26 g/mL at 25 °C (lit.)

Formato

matrix material

Stringa SMILE

O=[Ti]=O

InChI

1S/2O.Ti
GWEVSGVZZGPLCZ-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Each unit of SRM 1898 contains an amber glass bottle with approximately 15 g of anatase and rutile mixed phasenanocrystalline titanium dioxide (TiO2) in a dry agglomerated powder form.

SRM 1898_cert

SRM 1898_SDS

Caratteristiche e vantaggi

  • The certified values for multi-point (MP) and single-point(SP) data analysis using the linear form of the single parameter BET equationare presented and evaluated for the Brunauer-Emmet-Teller (BET) specificsurface area, determined through nitrogen gas sorption at liquid nitrogentemperature (77.3 K) using the discontinuous manometric measurement method, inaccordance with ISO 9277:2010.
  • Reference value is provided for nicotine adeninedinucleotide hydrate equivalent to photocatalytic activity.
  • Elemental composition, purity,crystalline-phase content, and crystallite size information values are provided for both Anatase and Rutile.
  • Expiration detailsand instructions for storage, handling, use, and maintenance are provided on the NIST certificate.

Altre note

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

Note legali

NIST is a registered trademark of National Institute of Standards and Technology
SRM is a registered trademark of National Institute of Standards and Technology

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number

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Titanium(IV) oxide, anatase powder, −325 mesh, ≥99% trace metals basis

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SAFC

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Ossido di titanio(IV)

Questions

1–3 of 3 Questions  

  1. 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

      Helpful?

  2. 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?

  3. Is this a mix of anatase and rutile ?

    1 answer

    1. This product is supplied by NIST. Please see pages 5 and 6 of the certificate/report which explains the mix of anatase and rutile:
      https://tsapps.nist.gov/srmext/certificates/1898.pdf

      Helpful?

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