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
544906
Zinc oxide
nanopowder, ≤50 nm particle size
Synonym(s):
Zinc monoxide, Zinc white
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₹4,300.00
₹14,170.00
₹20,037.08
About This Item
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Product Name
Zinc oxide, nanopowder, ≤50 nm particle size
InChI key
XLOMVQKBTHCTTD-UHFFFAOYSA-N
InChI
1S/O.Zn
SMILES string
O=[Zn]
assay
~80% Zn basis
form
nanopowder
surface area
10-25 m2/g
Quality Level
particle size
≤50 nm
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Related Categories
1 of 4
This Item | 14439 | 204951 | 773999 |
|---|---|---|---|
| assay ~80% Zn basis | assay 99-100.5% (calc. for dried substance) | assay 99.999% trace metals basis | assay - |
| form nanopowder | form powder | form powder | form nanowires |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| surface area 10-25 m2/g | surface area - | surface area - | surface area - |
| particle size <100 nm | particle size - | particle size - | particle size - |
Application
General description
signalword
Warning
hcodes
pcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1
Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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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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May I know its band gap value?
1 answer-
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.Helpful?
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How the ZnO nanoparties product 544906 is synthesised?
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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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Please tell me the "Purity" of the ZnO powder, Product number: 544906?
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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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