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Sigma-Aldrich

Germanium

powder, −100 mesh, ≥99.999% trace metals basis

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Synonym(s):
Elemental germanium
Empirical Formula (Hill Notation):
Ge
CAS Number:
7440-56-4
Molecular Weight:
72.64
EC Number:
231-164-3
MDL number:
MFCD00085310
UNSPSC Code:
12352300
PubChem Substance ID:
24859656
NACRES:
NA.23

Quality Level

100

assay

≥99.999% trace metals basis

form

powder

resistivity

53 Ω-cm, 20°C

particle size

−100 mesh

bp

2830 °C (lit.)

mp

937 °C (lit.)

density

5.35 g/mL at 25 °C (lit.)

SMILES string

[Ge]

InChI

1S/Ge

InChI key

GNPVGFCGXDBREM-UHFFFAOYSA-N

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Application

The product can serve as one of the precursors for the formation of highly porous ZrO2:Tb3+ nanophosphor with excellent tunable photoluminescence and photocatalytic activities.

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Flam. Sol. 1 - Repr. 2 - STOT RE 2 Oral

target_organs

Kidney

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Phase transformation of ZrO 2: Tb 3+ nanophosphor: Color tunable photoluminescence and photocatalytic activities.
Vidya YS, et al.
J. Alloy Compounds, 622, 86-96 (2015)
Thermoluminescence glow curve for UV induced ZrO2:Ti phosphor with variable concentration of dopant and various heating rate
Tiwari N, et al.
Journal of Radiation Research and Applied Sciences, 7(4), 542-549 (2014)
Minxian Wu et al.
Physical chemistry chemical physics : PCCP, 15(14), 4955-4964 (2013-02-27)
The electrodeposition of germanium from the ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide ([BMP][DCA]) and a mixture of [BMP][DCA] and 1-butyl-1-methylpyrrolidinium chloride ([BMP]Cl) was studied using cyclic voltammetry and using an electrochemical quartz crystal microbalance (EQCM). [GeCl4(BuIm)2] (BuIm = N-butylimidazole) was used as
Miroslav Cerný et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(3), 035401-035401 (2012-12-15)
The response of three covalent crystals with a diamond lattice (C, Si and Ge) to uniaxial and a special triaxial (generally nonhydrostatic) loading is calculated from first principles. The lattice deformations are described in terms of variations of bond lengths
Philippe Jund et al.
Journal of physics. Condensed matter : an Institute of Physics journal, 25(3), 035403-035403 (2012-12-15)
We report an ab initio study of the semiconducting Mg(2)X (with X = Si, Ge) compounds and in particular we analyze the formation energies of the different point defects with the aim of understanding the intrinsic doping mechanisms. We find that the
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