跳轉至內容
Merck
全部照片(1)

重要文件

檢視所有文件

357634

Sigma-Aldrich

镍

wire, diam. 0.25 mm, ≥99.9%

登入查看組織和合約定價
全部照片(1)

About This Item

經驗公式（希爾表示法）:
Ni
CAS號碼:
7440-02-0
分子量：:
58.69
EC號碼:
231-111-4
MDL號碼:
MFCD00011137
分類程式碼代碼:
11101706
PubChem物質ID:
24861929
NACRES:
NA.22
暫時無法取得訂價和供貨情況

品質等級

100

化驗

≥99.9%

形狀

wire

反應適用性

core: nickel
reagent type: catalyst

電阻係數

6.97 μΩ-cm, 20°C

直徑

0.25 mm

bp

2732 °C (lit.)

mp

1453 °C (lit.)

密度

8.9 g/mL at 25 °C (lit.)

SMILES 字串

[Ni]

InChI

1S/Ni

InChI 密鑰

PXHVJJICTQNCMI-UHFFFAOYSA-N

相關類別

應用

镍可用作以下反应的催化剂：
  • 氢化、氧化加成、C−H活化、氧化环化、交叉偶联反应等各种反应。[1]
  • 芳基醚的选择性氢解反应。[2]
  • 蒸汽重整过程制备氢气并合成气体。[3]
  • 苯甲醛氢化反应。[4]
  • CO2的甲烷化反应。[5]

數量

5 m (约2.2 g)

象形圖

Health hazardExclamation mark
GHS08,GHS07

訊號詞

Danger

危險聲明

H317,H351,H372

危險分類

Carc. 2 - Skin Sens. 1 - STOT RE 1

儲存類別代碼

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

水污染物質分類（WGK）

WGK 1

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCV7469
MKCW7031
MKCS2575
MKCR7799
MKCM4698

未看到正確版本？

如果您需要一個特定的版本，您可以透過批號來尋找特定憑證。

搜尋 COA

已經擁有該產品？

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

客戶也查看了

Slide 1 of 9

1 of 9

镍 foil, thickness 0.5 mm, 99.98% trace metals basis

Sigma-Aldrich

357553

镍

镍 wire reel, 100m, diameter 0.025mm, as drawn, 99.6+%

GF56322121

镍

镍 wire reel, 5m, diameter 0.025mm, as drawn, 99.98%

GF33231675

镍

镍 rod, diam. 6.35 mm, ≥99.99% trace metals basis

Sigma-Aldrich

267074

镍

镍 rod, 100mm, diameter 12.0mm, 99%

GF82156912

镍

镍 powder, <150 μm, 99.99% trace metals basis

Sigma-Aldrich

203904

镍

镍 nanopowder, <100 nm avg. part. size, ≥99% trace metals basis

Sigma-Aldrich

577995

镍

镍 foil, thickness 0.125 mm, ≥99.9%

Sigma-Aldrich

268259

镍

铜 wire, diam. 0.25 mm, 99.999% trace metals basis

Sigma-Aldrich

326429

铜

Benzaldehyde hydrogenation over supported nickel catalysts.
Saadi A, et al.
J. Mol. Catal. A: Chem., 253(1-2), 79-85 (2006)
Four challenges for nickel steam-reforming catalysts.
Sehested J
Catalysis Today, 111(1-2), 103-110 (2006)
Mesoporous nickel catalyst supported on multi-walled carbon nanotubes for carbon dioxide methanation.
Wang W, et al.
International Journal of Hydrogen Energy, 41(2), 967-975 (2016)
Alexey G Sergeev et al.
Science (New York, N.Y.), 332(6028), 439-443 (2011-04-23)
Selective hydrogenolysis of the aromatic carbon-oxygen (C-O) bonds in aryl ethers is an unsolved synthetic problem important for the generation of fuels and chemical feedstocks from biomass and for the liquefaction of coal. Currently, the hydrogenolysis of aromatic C-O bonds
Ornella Valenti et al.
Cerebral cortex (New York, N.Y. : 1991), 19(3), 658-674 (2008-07-18)
The prefrontal cortex receives multiple inputs from the hippocampal complex, which are thought to drive memory-guided behavior. Moreover, dysfunctions of both regions have been repeatedly associated with several psychiatric disorders. Therefore, understanding the interconnections and modulatory interactions between these regions
查看所有相關論文

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

      Helpful?

  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

      Helpful?

Reviews

No rating value

Active Filters

我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務