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349178

Sigma-Aldrich

Copper

foil, thickness 0.25 mm, 99.98% trace metals basis

Synonym(s):

Copper sheet

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25 CM2
$80.50
225 CM2
$199.50

$80.50

Available to ship onMay 13, 2025Details

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25 CM2
$80.50
225 CM2
$199.50

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:
11101604
PubChem Substance ID:
24861498
NACRES:
NA.23

$80.50

Available to ship onMay 13, 2025Details

Request a Bulk Order

Quality Level

100

assay

99.98% trace metals basis

form

foil

resistivity

1.673 μΩ-cm, 20°C

thickness

0.25 mm

bp

2567 °C (lit.)

mp

1083.4 °C (lit.)

density

8.94 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

[Cu]

InChI

1S/Cu

InChI key

RYGMFSIKBFXOCR-UHFFFAOYSA-N

General description

Copper foil with a thickness of 0.25 mm and a 99.98% trace metals basis is a top-quality product that has numerous industrial and commercial applications. It is produced using cutting-edge manufacturing processes that ensure superior quality and consistency. The foil is carefully inspected to meet the specified purity level and is free from any imperfections like scratches, dents, and tears. Copper foil is a highly versatile material that offers outstanding electrical conductivity, thermal conductivity, and corrosion resistance.

Application

Copper foil is commonly used in a variety of applications such as printed circuit boards (PCBs), electromagnetic shielding, and as a substrate in chemical vapor deposition. The 0.25 mm thickness of this foil makes it suitable for many applications, providing sufficient strength and durability while remaining easy to handle and manipulate. The 99.98% trace metals basis ensures that the copper foil is of the highest quality, with only minimal levels of impurities like lead, arsenic, and bismuth. This level of purity is critical for many industrial applications, particularly those in the electronics industry, where even small amounts of impurities can significantly impact the performance and reliability of the end product.

Quantity

50×50 mm (approximately 5.5 g)
150×150 mm (approximately 49.5 g)

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW4451
MKCV9371
MKCT6971
MKCS9300
MKCR0797

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Copper foil, thickness 0.022 mm, length 20 m, coil width 0.45 mm

GF00653813

Copper

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
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
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.
Seiko Ishida et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(48), 19507-19512 (2013-11-13)
Copper is an essential trace element, the imbalances of which are associated with various pathological conditions, including cancer, albeit via largely undefined molecular and cellular mechanisms. Here we provide evidence that levels of bioavailable copper modulate tumor growth. Chronic exposure
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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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