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
774081
Copper
nanopowder, 25 nm particle size (TEM)
Synonym(s):
Copper nanoparticles
Select a Size
R 1,572.90
About This Item
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InChI key
RYGMFSIKBFXOCR-UHFFFAOYSA-N
InChI
1S/Cu
SMILES string
[Cu]
form
nanopowder
resistivity
1.673 μΩ-cm, 20°C
particle size
25 nm (TEM)
bp
2567 °C (lit.)
mp
1083.4 °C (lit.)
density
8.94 g/mL at 25 °C (lit.)
Quality Level
Related Categories
1 of 4
This Item | 326453 | 357456 | 203122 |
|---|---|---|---|
| form nanopowder | form powder (spheroidal) | form powder (dendritic) | form powder |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| density 8.94 g/mL at 25 °C (lit.) | density 8.94 g/mL at 25 °C (lit.) | density 8.94 g/mL at 25 °C (lit.) | density 8.94 g/mL at 25 °C (lit.) |
| bp 2567 °C (lit.) | bp 2567 °C (lit.) | bp 2567 °C (lit.) | bp 2567 °C (lit.) |
| mp 1083.4 °C (lit.) | mp 1083.4 °C (lit.) | mp 1083.4 °C (lit.) | mp 1083.4 °C (lit.) |
| resistivity 1.673 μΩ-cm, 20°C | resistivity 1.673 μΩ-cm, 20°C | resistivity 1.673 μΩ-cm, 20°C | resistivity 1.673 μΩ-cm, 20°C |
General description
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 2 - Self-heat. 1
Storage Class
4.2 - Pyrophoric and self-heating hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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제품을 받아서 사용하고 있는데, 해당 제품이 캔 형식으로 되어있어서 다시 동봉되지 않는 형식이더라구요. 장기적으로 소량씩 사용하려고 하는데 이에 대한 보관방법이 따로 있을지 궁금합니다.
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It is recommended to store this product in a tightly closed container under inert gas environment and keep it away from heat and sources of ignition. For small quantities use over the long term, it is recommended to transfer the product into appropriately sized vials for each use that helps maintain the integrity and ensure safe handling.
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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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