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357634

Sigma-Aldrich

镍

wire, diam. 0.25 mm, ≥99.9%

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1 EA
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About This Item

经验公式（希尔记法）:
Ni
CAS号:
7440-02-0
分子量:
58.69
EC 号:
231-111-4
MDL编号:
MFCD00011137
UNSPSC代码:
11101706
PubChem化学物质编号:
24861929
NACRES:
NA.22

$196.00

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质量水平

100

方案

≥99.9%

表单

wire

反应适用性

core: nickel
reagent type: catalyst

电阻率

6.97 μΩ-cm, 20°C

直径

0.25 mm

沸点

2732 °C (lit.)

mp

1453 °C (lit.)

密度

8.9 g/mL at 25 °C (lit.)

SMILES字符串

[Ni]

InChI

1S/Ni

InChI key

PXHVJJICTQNCMI-UHFFFAOYSA-N

相关类别

应用

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]

数量

5 m (约2.2 g)

象形图

Health hazardExclamation mark
GHS08,GHS07

警示用语：

Danger

危险声明

H317,H351,H372

危险分类

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

储存分类代码

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

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCV7469
MKCW7031
MKCS2575
MKCR7799
MKCM4698

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Four challenges for nickel steam-reforming catalysts.
Sehested J
Catalysis Today, 111(1-2), 103-110 (2006)
Benzaldehyde hydrogenation over supported nickel catalysts.
Saadi A, et al.
J. Mol. Catal. A: Chem., 253(1-2), 79-85 (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
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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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