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.pdf
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 15 g | Available to ship TODAYfromMILWAUKEE | $1,210.00 |
About This Item
$1,210.00
Available to ship TODAYDetails
grade
certified reference material
Quality Level
packaging
pkg of 15 g
manufacturer/tradename
NIST®
mp
>350 °C (lit.)
density
4.26 g/mL at 25 °C (lit.)
format
matrix material
SMILES string
O=[Ti]=O
InChI
1S/2O.Ti
InChI key
GWEVSGVZZGPLCZ-UHFFFAOYSA-N
General description
SRM 1898_cert
SRM 1898_SDS
Features and Benefits
- 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.
Other Notes
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| grade certified reference material | grade certified reference material | grade - | grade - |
| manufacturer/tradename NIST® | manufacturer/tradename NIST® | manufacturer/tradename - | manufacturer/tradename - |
| format matrix material | format - | format - | format - |
| Quality Level 100 | Quality Level 100 | Quality Level - | Quality Level - |
| 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 >350 °C (lit.) | mp >350 °C (lit.) | mp - | mp >350 °C (lit.) |
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Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| NIST1898 | 04061834140511 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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?
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Is this a mix of anatase and rutile ?
1 answer-
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.pdfHelpful?
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