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203122

Sigma-Aldrich

Copper

powder, 99.99% trace metals basis

Synonym(s):

Cu powder

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10 G
3 880,00 kr
50 G
14 510,00 kr

3 880,00 kr

Please contact Customer Service for Availability
Request a Bulk Order
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10 G
3 880,00 kr
50 G
14 510,00 kr

About This Item

Empirical Formula (Hill Notation):
Cu
CAS Number:
7440-50-8
Molecular Weight:
63.55
EC Number:
231-159-6
MDL number:
MFCD00010965
UNSPSC Code:
12141711
eCl@ss:
38150101
PubChem Substance ID:
24852148
NACRES:
NA.23

3 880,00 kr

Please contact Customer Service for Availability
Request a Bulk Order

Quality Level

100

Assay

99.99% trace metals basis

form

powder

resistivity

1.673 μΩ-cm, 20°C

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

SMILES string

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

General description

Copper powder, 99.999% trace metals basis, is a fine powder that is typically red-brown in color. It is often produced through the reduction of copper oxide or other copper compounds using hydrogen or other reducing agents. Our powder is highly pure, with less than 15 ppm impurities such as lead, arsenic, and bismuth, making it suitable for a wide range of industrial and commercial applications. Copper is valued for its excellent electrical and thermal conductivity, high ductility, and resistance to corrosion.

Application

High-purity copper powder is used in a variety of applications, such as in the production of electrical components and conductive coatings and as a catalyst in chemical reactions. Additionally, copper powder can be used in the production of various alloys and as a raw material for powder metallurgy.

Features and Benefits

Our 99.999% pure copper powder is useful in the electronics and chemical industries where purity matters most.
✔ Consistent quality
✔ Ultra high purity
✔ Available to scale up: bulk and pilot scale

Signal Word

Danger-Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 2

Flash Point(F)

212.0 °F

Flash Point(C)

100 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCW6084
MKCN0269
MKCL3008
MKCG3837
MKCD8741

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Hiroshi Sato et al.
Science (New York, N.Y.), 343(6167), 167-170 (2013-12-18)
Carbon monoxide (CO) produced in many large-scale industrial oxidation processes is difficult to separate from nitrogen (N2), and afterward, CO is further oxidized to carbon dioxide. Here, we report a soft nanoporous crystalline material that selectively adsorbs CO with adaptable
Daniel L Priebbenow et al.
Organic letters, 15(24), 6155-6157 (2013-11-28)
A method has been developed for the preparation of N-alkynylated sulfoximines involving the copper-catalyzed decarboxylative coupling of sulfoximines with aryl propiolic acids. A range of substituents on both the sulfoximidoyl moiety and the aryl group of the propiolic acid were
Seonah Kim et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(1), 149-154 (2013-12-18)
Lytic polysaccharide monooxygenases (LPMOs) exhibit a mononuclear copper-containing active site and use dioxygen and a reducing agent to oxidatively cleave glycosidic linkages in polysaccharides. LPMOs represent a unique paradigm in carbohydrate turnover and exhibit synergy with hydrolytic enzymes in biomass
Huawen Huang et al.
Organic letters, 15(24), 6254-6257 (2013-11-23)
A rapid and environmentally friendly conversion of pyridine to imidazo[1,2-a]pyridines has been developed via copper-catalyzed aerobic dehydrogenative cyclization with ketone oxime esters.
R Squitti et al.
Neurology, 67(1), 76-82 (2006-07-13)
To assess whether serum copper in Alzheimer disease (AD) correlates with cognitive scores, beta-amyloid, and other CSF markers of neurodegeneration. The authors studied copper, ceruloplasmin, total peroxide, and antioxidants levels (TRAP) in serum; beta-amyloid in plasma; and copper, beta-amyloid, h-tau
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Questions

1–3 of 3 Questions  

  1. 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

      Helpful?

  2. 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

      Helpful?

  3. What is the particle size of this copper powder?

    1 answer

    1. The particle size of this material is not determined on a lot-to-lot basis. However, historical data indicate a size of approximately -22 mesh.

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