CAS 7440-56-4 Germanium single crystal disc, 10mm (0.39in) dia, 1-3mm (0.04-0.1in) thick, (110) orientation, ±0.5°

NAVIGATION

Germanium single crystal disc, 10mm (0.39in) dia, 1-3mm (0.04-0.1in) thick, (110) orientation, ±0.5°

PRICE INQUIRY

Catalog Number

ACM7440564

CAS Number

7440-56-4

Product Name

Germanium single crystal disc, 10mm (0.39in) dia, 1-3mm (0.04-0.1in) thick, (110) orientation, ±0.5°

Category

Single Crystals; Thermoelectric Materials

Synonyms

germanium nanopowder suspension, aqueous germanium nanoparticle solution, germanium nanofluid

Description

PelletsLargeCrystals, WetSolid, OtherSolid

IUPAC Name

germanium

Molecular Weight

72.63g/mol

Molecular Formula

Canonical SMILES

[Ge]

InChI

InChI=1S/Ge

InChI Key

GNPVGFCGXDBREM-UHFFFAOYSA-N

Boiling Point

2700 °C

Melting Point

937.2 °C

Purity

99%, 99.9%, 99.99%, 99.999%

Density

5.323 @ 25 °C/4 °C

Solubility

INSOL IN WATER, HYDROCHLORIC ACID, DIL ALKALI HYDROXIDES;SOL IN HOT SULFURIC ACID, AQUA REGIA; INSOL IN ALKALI

Appearance

Liquid dispersion

Application

The Germanium single crystal disc, with its precise (110) orientation and dimensions of 10mm in diameter and 1-3mm in thickness, serves critical applications due to its unique semiconductor properties. This product is essential for the manufacture of high-performance electronic components, such as germanium diodes and transistors, which capitalize on its capability to efficiently rectify and amplify electrical signals. Additionally, its utility extends to infrared optical systems, where germanium's ability to transmit infrared radiation is harnessed in lenses and filters integral to laser and infrared detection technologies. The metalloid's ability to form stable compounds at varying oxidation states further enhances its role in specialized alloys and advanced optical materials, making it invaluable in a range of technological applications where precision and efficiency are paramount.

Color/Form

GRAYISH-WHITE, LUSTROUS, BRITTLE METALLOID; DIAMOND-CUBIC STRUCTURE WHEN CRYSTALLINE

Complexity

Covalently-Bonded Unit Count

EC Number

231-164-3

Exact Mass

73.921178g/mol

Formal Charge

Hazard Statements

H315-H319-H335

Heat of Vaporization

3.5733X10+8 J/kmol @ melting point

Heavy Atom Count

MDL Number

MFCD00085310

MeSH Entry Terms

Germanium

Monoisotopic Mass

73.921178g/mol

Morphology

nearly spherical

Other Experimental

THERMAL EXPANSION COEFFICIENT AT APPROX 25 °C: 6.1X10-6 °C; THERMAL CONDUCTIVITY @ 25 °C: 0.14 CAL/SEC CM/DEG C; SPECIFIC HEAT (0-100 °C): 0.074 CAL/G/DEG C;LATTICE CONSTANT @ 25 DEG: 5.657X10-8 CM; VOL COMPRESSIBILITY: 1.3X10-12 SQ CM/DYN; DIELECTRIC CONSTANT: 16; MAGNETIC (MASS) SUSCEPTIBILITY (CHI X10+6)= -0.12;COVALENT BOND IONIZATION ENERGY @ 0 DEG K= 1.2 ELECTRON VOLT; BAND GAP: 0.67 ELECTRON VOLT; ATOMS/CC= 4.42X10+22; IMPURITY ATOM IONIZATION ENERGY: APPROX 0.01 ELECTRON VOLT; INTRINSIC RESISTIVITY @ 300 DEG K= 47 OHM-CM;ELECTRON MOBILITY @ 300 DEG K: 3900 SQ CM/V SEC; HOLE MOBILITY @ 300 DEG K= 1900 CM/V SEC; HOLE DIFFUSION CONSTANT @ 300 DEG K= 49;INTRINSIC CHARGE DENSITY @ 300 DEG K= 2.4X10+13; ELECTRON DIFFUSION CONSTANT @ 300 DEG K= 100;IS HIGHLY TRANSPARENT TO INFRARED LIGHT; HAS A HIGH INDEX OF REFRACTION;THE METAL & MANY OF ITS ALLOYS EXPAND ON SOLIDIFICATION;FIVE NATURALLY OCCURRING ISOTOPES: 70 (20.55%); 72 (27.37%); 73 (7.67%); 74 (36.74%); 76 (7.67%); ATOMIC NUMBER 32;POOR CONDUCTOR OF ELECTRICITY; VOL SMALLER BY FEW % WHEN MOLTEN; ATTACKED BY AQUA REGIA, CONCN NITRIC OR SULFURIC ACIDS, FUSED ALKALIES, ALKALI PEROXIDES, NITRATES, OR CARBONATES;HARDNESS 6 ON MOHS SCALE;Liquid molar volume = 0.013001 cu m/kmol determined at the triple point.;IG heat of formation = 3.766X10+8 J/kmol (ideal gas); for the crystal the enthalpy of formation is 0 at 298.15 K.;Heat of fusion at melting point = 3.18X10+7 J/kmol.

Particle Size

70-120 nm

Ratio

0.26

Rotatable Bond Count

Safety Description

26-36/39

Signal Word

Warning

Stability

RELATIVELY STABLE, UNAFFECTED BY AIR, BECOMES OXIDIZED ABOVE 600 °C

True Density