Merck

266264

Sigma-Aldrich

powder, 99.5%, −100 mesh

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别名:
Cd
Empirical Formula (Hill Notation):
Cr
CAS号:
分子量:
52.00
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.22

检测方案

99.5%

形式

powder

reaction suitability

core: chromium
reagent type: catalyst

电阻率

12.7 μΩ-cm, 20°C

粒径

−100 mesh

bp

2672 °C (lit.)

mp

1857 °C (lit.)

密度

7.14 g/mL at 25 °C (lit.)

SMILES string

[Cr]

InChI

1S/Cr

InChI key

VYZAMTAEIAYCRO-UHFFFAOYSA-N

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此商品
255610266299265330
Chromium powder, 99.5%, −100 mesh

Sigma-Aldrich

266264

Chromium chips, thickness ~2 mm, 99.5%

Sigma-Aldrich

255610

Chromium powder, ≥99% trace metals basis, <45 μm

Sigma-Aldrich

266299

Cadmium granular, ≥99%, 5-20 mesh

Sigma-Aldrich

265330

form

powder

form

chips

form

powder

form

granular

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: cadmium, reagent type: catalyst

bp

2672 °C (lit.)

bp

2672 °C (lit.)

bp

2672 °C (lit.)

bp

765 °C (lit.)

mp

1857 °C (lit.)

mp

1857 °C (lit.)

mp

1857 °C (lit.)

mp

320.9 °C (lit.)

density

7.14 g/mL at 25 °C (lit.)

density

7.14 g/mL at 25 °C (lit.)

density

7.14 g/mL at 25 °C (lit.)

density

8.65 g/mL at 25 °C (lit.)

应用

铬粉可用于双(甲苯)铬硼络合物的微波辅助合成,[Cr(η-C6H5CH3)2]+ (BPh4)-也可用于硫化铬的固态合成。

储存分类代码

11 - Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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Synthetic reactions using metal powders under microwave irradiation.
Whittaker A G and Mingos D M P
J. Chem. Soc., Dalton Trans., 21, 3967-3970 (2002)
Microwave-assisted solid-state reactions involving metal powders.
GavinaWhittaker A and Michael P aMingos D
J. Chem. Soc., Dalton Trans., 12, 2073-2079 (1995)
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Chromium-based catalysts are used for the synthesis of polyethylene, but little is known about the hazard and biomonitoring possibilities of this type of chromium for workers who may be occupationally exposed to such compounds. Therefore, the bioavailability and toxicokinetics of
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