635073

Sigma-Aldrich

Magnesium aluminate

single crystal substrate, <100>, 99.99% trace metals basis

Linear Formula:
MgO·Al2O3
CAS Number:
Molecular Weight:
142.27
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

description

single side polished

assay

99.99% trace metals basis

hardness

8.0 mohs

L × W × thickness

10 mm × 10 mm × 0.5 mm

mp

2130 °C (lit.)

density

3.64 g/mL at 25 °C (lit.)

semiconductor properties

<100>

SMILES string

[Mg++].[O-][Al]=O.[O-][Al]=O

InChI

1S/2Al.Mg.4O/q;;+2;;;2*-1

InChI key

VPBIQXABTCDMAU-UHFFFAOYSA-N

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Application

Transparent substrate used for bulk microwave and acoustic wave devices. Good substrate for III-V nitride materials. Inert matrix for the transmutation of minor actinides such as americium.

Packaging

1 ea in rigid mailer

Physical properties

propagation loss: 6.5 dB/μs; phase velocity: 6500 m/x at (100> shear wave); thermal expansion: 7.45 × 10-6 /°C

Physical form

cubic (a = 8.083 Å)

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

3

Certificate of Analysis
Certificate of Origin
Klaassen, F.C.
J. Nuc. Mat., 319, 108-108 (2003)
Liang Lv et al.
Journal of hazardous materials, 152(3), 1130-1137 (2007-09-14)
A fundamental investigation on the uptake of bromide ion from contaminated water by calcined and uncalcined MgAl-CO3 layered double hydroxides (LDHs) were conducted in batch mode. The uptake capacity of calcined LDHs (CLDH) is higher than that of uncalcined LDHs...
Feng Li et al.
Journal of hazardous materials, 125(1-3), 89-95 (2005-07-12)
MgAl-layered double hydroxides with different interlayer anions (nitrate, carbonate and chloride) were evaluated for their abilities to adsorb the organic pesticide glyphosate (N-phosphonomethyl glycine, Gly). The adsorption isotherms of Gly on layered double hydroxides (LDHs) nitrate were described by the...
Toshiaki Yoshioka et al.
Chemosphere, 69(5), 832-835 (2007-06-26)
Magnesium-aluminum oxide (Mg-Al oxide) prepared by the thermal decomposition of a hydrotalcite-like compound was found to have potential for treating NaBF(4) wastewater. The Mg-Al oxide removed the BF(4)(-) and F(-) and H(3)BO(3) from the NaBF(4) solution. With increasing Mg-Al oxide...
Tomohito Kameda et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 47(5), 711-717 (2012-03-16)
Mg-Al oxide obtained by calcination of NO(3)(-)-intercalated Mg-Al layered double hydroxide (NO(3)•Mg-Al LDH) was used to treat H(2)SO(4), acting as both a neutralizer of the acid and a fixative for SO(4)(2-). The fraction of SO(4)(2-) removed increased with time and...

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