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266299

Sigma-Aldrich

Chromium

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

Sinónimos:

Cd

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About This Item

Fórmula empírica (notación de Hill):
Cr
Número de CAS:
7440-47-3
Peso molecular:
52.00
EC Number:
231-157-5
MDL number:
MFCD00010944
UNSPSC Code:
12161600
PubChem Substance ID:
24856133
NACRES:
NA.22

assay

≥99% trace metals basis

form

powder

reaction suitability

core: chromium
reagent type: catalyst

resistivity

12.7 μΩ-cm, 20°C

particle size

<45 μm

bp

2672 °C (lit.)

mp

1857 °C (lit.)

density

7.14 g/mL at 25 °C (lit.)

SMILES string

[Cr]

InChI

1S/Cr

InChI key

VYZAMTAEIAYCRO-UHFFFAOYSA-N

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General description

Chromium is widely used as a catalyst in chemical synthesis. It is also used in the preparation of other chromium-based compounds.

Application

Chromium (Cr) powder can be used in the preparation of Cr-based nanoporous metal-organic frameworks in activated carbon. This composite is used as an adsorbent for the removal of contaminants of emerging concern (CECs) from water.

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Sigma-Aldrich

266981

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Cobalt/Chromium powder, Co 70%/Cr 30%, max. particle size 45 micron, weight 100&#160;g, condition atomized

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Sigma-Aldrich

262722

Niobium

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Journal of exposure analysis and environmental epidemiology, 10(2), 103-114 (2000-05-03)
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J A J Vanoirbeek et al.
Journal of toxicology and environmental health. Part A, 66(4), 393-409 (2003-01-30)
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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