This product is a ZnO nanoparticle dispersion in water (~20 wt%) with no surface treatment or capping agent. No ligand is present.
721077
Zinc oxide, dispersion
nanoparticles, 30 nm avg. part. size (SEM), 20 wt. % in H2O
Synonym(s):
Zinc monoxide, Zinc white
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| Size/SKU | Availability | Price |
|---|---|---|
100 g | Check Cart for Availability | $57.00 |
1 kg | Estimated to ship onOctober 13, 2026fromMILWAUKEE. | $445.00 |
About This Item
Linear Formula:
ZnO
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12161600
MDL number:
Quality Segment
form
dispersion, nanoparticles
concentration
20 wt. % in H2O
avg. part. size
30 nm (SEM)
pH
7.5±1.5
density
1.7 g/mL±0.1 g/mL at 25 °C
SMILES string
[Zn]=O
InChI
1S/O.Zn
InChI key
XLOMVQKBTHCTTD-UHFFFAOYSA-N
General description
Zinc oxide, dispersion (ZnO) is a multi-function metal oxide with unique physio-chemical properties, which includes high chemical stability, broad range absorption spectra and high electrochemical characteristics. It can also be categorized as a semiconductor due to its high energy band width and high thermal stability that make it potentially useful in electronics and optoelectronics applications.
Application
ZnO dispersions have piezo and pyroelectric properties that make it useful in the development of sensors, generators, and photo-catalysis. It has low toxicity and biocompatibility, which facilitate its applications in biomedicine.
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This Item | |||
|---|---|---|---|
| description nanoparticles, 30 nm avg. part. size (SEM), 20 wt. % in H2O | description nanopowder, ≤50 nm particle size | description puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5% (calc. for dried substance) | description 99.999% trace metals basis |
| form dispersion, nanoparticles | form nanopowder | form powder | form powder |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| density 1.7 g/mL±0.1 g/mL at 25 °C | density - | density - | density - |
| concentration 20 wt. % in H2O | concentration - | concentration - | concentration - |
| avg. part. size 30 nm (SEM) | avg. part. size - | avg. part. size - | avg. part. size - |
| pH 7.5±1.5 | pH - | pH - | pH - |
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hcodes
pcodes
Hazard Classifications
Aquatic Chronic 2
Storage Class
12 - Non Combustible Liquids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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What ligand was used to disperse the particles?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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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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Is this in a sterile packaging ?
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This product is not sterile.
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I have used ZnO NPs dispersion (Cat. No. 721077-100G) and SWCNT powder (Cat. No. 704121-250MG) from sigma. I want the information about the synthesis protocol of these nanoparticles.
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The synthesis protocols for these products are considered proprietary and cannot be provided. However, it may be helpful to view the publications below:
https://www.sigmaaldrich.com/technical-documents/technical-article/materials-science-and-engineering/nanoparticle-and-microparticle-synthesis/synthesis-of-zno-aggregates-and-their-applicationhttps://www.sciencedirect.com/science/article/abs/pii/B978012813248700002X
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