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544906

Sigma-Aldrich

Zinc oxide

nanopowder, <100 nm particle size

Synonym(s):

Zinc monoxide, Zinc white

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About This Item

Linear Formula:
ZnO
CAS Number:
1314-13-2
Molecular Weight:
81.39
EC Number:
215-222-5
MDL number:
MFCD00011300
UNSPSC Code:
12352302
PubChem Substance ID:
24878793
NACRES:
NA.23
Pricing and availability is not currently available.

Assay

~80% Zn basis

Quality Level

200

form

nanopowder

surface area

10-25 m2/g

particle size

<100 nm

SMILES string

O=[Zn]

InChI

1S/O.Zn

InChI key

XLOMVQKBTHCTTD-UHFFFAOYSA-N

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General description

Zinc oxide (ZnO) nanopowder is a metal oxide that is an n-type direct band semiconducting material with a band gap of 3.37 eV. Its properties include high chemical stability, photostability, and high electrochemical coupling coefficient. It is classified as a semiconductor in group II-VI with bond energy of 60 meV, and high thermo-mechanical stability at ambient temperatures.[1][2]

Application

ZnO nanopowder can be used for a variety of applications, such as catalysts, optical materials, UV absorbers, gas sensors and cosmetics.[1][2][3][4]
Employed in the preparation of NaZnSiO3OH, a novel chiral framework material which has potential application in ion exchange, adsorption or catalysis.

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H410

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

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
0000373850
0000357229
0000373850
0000343684
0000343672

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Simultaneous doping of aluminum and fluorine on zinc oxide nanopowder using a low-cost soft chemical route
Saravanakumar K, et al.
Materials Letters, 65(14), 2278-2280 (2011)
Zinc oxide?from synthesis to application: a review
Kolodziejczak-Radzimska A, et al.
Materials, 7(4), 2833-2881 (2014)
"Nanopowder synthesis of zinc oxide via solochemical processing.
Vaezi MR and Sadrnezhaad SK
Materials & Design, 28(2), 515-519 (2007)
Photoluminescence of zinc oxide nanopowder synthesized by a combustion method
Tarwal NL, et al.
Powder Technology, 208(1), 185-188 (2011)
Air-stable inverted flexible polymer solar cells using zinc oxide nanoparticles as an electron selective layer.
Hau S, et al.
Applied Physics Letters, 92(25), 253301-253301 (2008)
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Questions

1–5 of 5 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

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  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

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  3. May I know its band gap value?

    1 answer

    1. The band gap value of this material has not been determined. However, information available in the literature suggests this semiconducting material demonstrates a band gap of 3.37 eV at room temperature. Please refer to the link below to review additional information:
      https://www.sciencedirect.com/science/article/pii/S003810982030661X#:~:text=The%20band%20gap%20of%20bulk,at%20room%20temperature%20%5B6%5D.

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  4. How the ZnO nanoparties product 544906 is synthesised?

    1 answer

    1. The method of synthesis is considered proprietary. The shareable information for this product can be found on the product page, COA, and SDS.

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  5. Please tell me the "Purity" of the ZnO powder, Product number: 544906?

    1 answer

    1. The purity of this product is measured by the Zinc content. The compound is approximately 80% Zn as stated in the 'PROPERTIES' section in 'Assay'.

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