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255610

Sigma-Aldrich

Chromium

chips, thickness ~2 mm, 99.5%

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Synonym(s):
Cd
Empirical Formula (Hill Notation):
Cr
CAS Number:
7440-47-3
Molecular Weight:
52.00
EC Number:
231-157-5
MDL number:
MFCD00010944
PubChem Substance ID:
24855468
NACRES:
NA.22

Quality Level

100

Assay

99.5%

form

chips

reaction suitability

core: chromium
reagent type: catalyst

resistivity

12.7 μΩ-cm, 20°C

thickness

~2 mm

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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1 of 4

This Item
266264266299381004
Chromium chips, thickness ~2 mm, 99.5%

Sigma-Aldrich

255610

Chromium

Chromium powder, 99.5%, −100 mesh

Sigma-Aldrich

266264

Chromium

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

Sigma-Aldrich

266299

Chromium

Bis(cyclopentadienyl)chromium(II) 95%

Sigma-Aldrich

381004

Bis(cyclopentadienyl)chromium(II)

form

chips

form

powder

form

powder

form

solid

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: chromium, reagent type: catalyst

reaction suitability

core: chromium, reagent type: catalyst

bp

2672 °C (lit.)

bp

2672 °C (lit.)

bp

2672 °C (lit.)

bp

-

mp

1857 °C (lit.)

mp

1857 °C (lit.)

mp

1857 °C (lit.)

mp

168-170 °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

-

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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
Feng Liu et al.
Scientific reports, 3, 1554-1554 (2013-03-28)
In conventional photostimulable storage phosphors, the optical information written by x-ray or ultraviolet irradiation is usually read out as a visible photostimulated luminescence (PSL) signal under the stimulation of a low-energy light with appropriate wavelength. Unlike the transient PSL, here
B Seifert et al.
Journal of exposure analysis and environmental epidemiology, 10(2), 103-114 (2000-05-03)
The German Environmental Survey (GerES) is a large-scale population study which has repeatedly been carried out in Germany. GerES I was conducted in 1985/1986 followed by GerES IIa in 1990/1991 (West Germany) and GerES IIb in 1991/1992 (East Germany). GerES
Carola Lidén et al.
Contact dermatitis, 54(5), 233-238 (2006-05-13)
There is a great need to accurately assess skin exposure to contact allergens. We have developed a technique for assessment of skin exposure to nickel, chromium and cobalt using acid wipe sampling by cellulose wipes with 1% nitric acid. Chemical
Jacob P Thyssen et al.
Contact dermatitis, 69(5), 276-279 (2013-10-15)
A patient who had suffered from persistent generalized dermatitis for 7 years was diagnosed with cobalt sensitization, and his leather couch was suspected as the culprit, owing to the clinical presentation mimicking allergic chromium dermatitis resulting from leather furniture exposure. The
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