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774081

Sigma-Aldrich

铜

nanopowder, 25 nm particle size (TEM)

别名:

Copper nanoparticles

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About This Item

经验公式（希尔记法）:
Cu
CAS号:
7440-50-8
分子量:
63.55
EC 号:
231-159-6
MDL编号:
MFCD00010965
UNSPSC代码:
12352302
PubChem化学物质编号:
329767661
NACRES:
NA.23
价格与库存信息目前不能提供

质量水平

100

表单

nanopowder

电阻率

1.673 μΩ-cm, 20°C

粒径

25 nm (TEM)

沸点

2567 °C (lit.)

mp

1083.4 °C (lit.)

密度

8.94 g/mL at 25 °C (lit.)

SMILES字符串

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

相关类别

一般描述

这种铜纳米粉末是一种细的红棕色至黑色粉末，由平均粒径为25 nm的金属铜纳米粒子制成。颗粒未被氧化，我们建议将产品储存在惰性气体下以保持未氧化的表面。

应用

25 nm铜纳米粉可用于各种应用，如印刷电子学、[1] 无电镀铜、[2]导热流体、催化[3]和热能储存。 [4]

象形图

FlameEnvironment
GHS02,GHS09

警示用语：

Danger

危险声明

H228,H251,H410

危险分类

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 2 - Self-heat. 1

储存分类代码

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
STBL3780
STBL2768
STBL0488
STBK7875
STBK4335

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Chih-Ying Lee et al.
Chemosphere, 261, 128051-128051 (2020-10-30)
The potential toxicity of copper nanoparticles (CuNPs) to early stages of fishes is not fully understood, and little is known about their effects on ionocytes and associated functions. This study used zebrafish embryos as a model to investigate the toxic
Ultrasound assisted dispersal of a copper nanopowder for electroless copper activation
Graves JE, et al.
Ultrasonics Sonochemistry, 29, 428-438 (2016)
Chan; G.H.;
Nano Letters, 7(7), 1947-1952 (2007)
Low-cost and high-throughput synthesis of copper nanopowder for nanofluid applications
Maji NC, et al.
Chemical Engineering Journal, 353, 34-45 (2018)
Evaluation of copper nanoparticles-Paraffin wax compositions for solar thermal energy storage
Lin SC and Al-Kayiem HH
Solar Energy, 132, 267-278 (2016)
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Questions

1–2 of 2 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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