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重要文件

NIST1898

二氧化钛

NIST® SRM® 1898, nanomaterial

同義詞:

氧化钛(IV), 二氧化钛

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About This Item

線性公式:
TiO2
CAS號碼:
分子量::
79.87
MDL號碼:
分類程式碼代碼:
41116107
PubChem物質ID:
NACRES:
NA.24
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等級

certified reference material

品質等級

包裝

pkg of 15 g

製造商/商標名

NIST®

mp

>350 °C (lit.)

密度

4.26 g/mL at 25 °C (lit.)

形式

matrix material

SMILES 字串

O=[Ti]=O

InChI

1S/2O.Ti

InChI 密鑰

GWEVSGVZZGPLCZ-UHFFFAOYSA-N

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一般說明

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

特點和優勢

  • 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.

其他說明

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

法律資訊

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

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

nwg

閃點(°F)

Not applicable

閃點(°C)

Not applicable


從最近期的版本中選擇一個:

分析證明 (COA)

Lot/Batch Number

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Questions

1–3 of 3 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

      Helpful?

  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

      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

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