CAS 409-21-2 Silicon Carbide Micronwhisker - Materials / Alfa Chemistry

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Silicon Carbide Micronwhisker

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Catalog Number

ACM409212-3

Product Name

Silicon Carbide Micronwhisker

Structure

CAS

409-21-2

Category

Nanopowders

Synonyms

methanidylidynesilicon; Carborundum; Silicon monocarbide; Betarundum Carborundeum; carbon silicide; Green densic

Description

Silicon Carbide (SiC) Micronwhiskers, Nanoparticles, nanodots or nanopowder are spherical high surface area particles. Nanoscale Silicon Carbide Particles are typically 10 - 150 nanometers (nm) with specific surface area (SSA) in the 10 - 75 m2/g range. Nano Silicon Carbide Particles are also available in ultra high purity and high purity and coated and dispersed forms. They are also available as a dispersion through the AE Nanofluid production group. Nanofluids are generally defined as suspended nanoparticles in solution either using surfactant or surface charge technology. Nanofluid dispersion and coating selection technical guidance is also available. Other nanostructures include nanorods, nanowhiskers, nanohorns, nanopyramids and other nanocomposites. Surface functionalized nanoparticles allow for the particles to be preferentially adsorbed at the surface interface using chemically bound polymers.

IUPAC Name

methanidylidynesilicon

Molecular Weight

40.1

Molecular Formula

SiC

Canonical SMILES

[C-]#[Si+]

InChI

InChI=1S/CSi/c1-2

InChI Key

HBMJWWWQQXIZIP-UHFFFAOYSA-N

Boiling Point

Sublimes (NIOSH, 2016);Sublimes;Sublimes

Melting Point

2,730° C (4,946° F) (decomposes)

Purity

0.99

Density

3.0 to 3.2 g/cm³

Solubility

Insoluble (NIOSH, 2016);INSOL IN COLD WATER, HOT WATER, & ACID; SOL IN FUSED POTASSIUM HYDROXIDE;INSOL IN ALCOHOL; SOL IN MOLTEN IRON;Solubility in water: none;Insoluble

Appearance

solid

Color/Form

EXCEEDINGLY HARD, GREEN TO BLUISH-BLACK, IRIDESCENT, SHARP CRYSTALS;HEXAGONAL OR CUBIC;Yellow to green to bluish black, iridescent crystals.

Complexity

Covalently-Bonded Unit Count

EC Number

206-991-8

Electrical Resistivity

1 to 4 10x Ω-m

Exact Mass

39.976927

Form

solid

Formal Charge

Hazard Statements

H315-H319-H335

Heavy Atom Count

ICSC Number

1061

MDL Number

MFCD00049531

MeSH Entry Terms

Crystar;silicon carbide

Monoisotopic Mass

39.976927

Other Experimental

DIELECTRIC CONSTANT: 7.0; HARDNESS: 9.5; ELECTRON MOBILITY: GREATER THAN 100 SQ CM/VOLT-SEC; HOLE MOBILITY: GREATER THAN 20 SQ CM/VOLT-SEC; BAND GAP ENERGY: 2.8 ELECTRON-VOLTS;SUBLIMES WITH DECOMPOSITION AT 2700 °C;EXCELLENT THERMAL CONDUCTIVITY; ELECTRICALLY CONDUCTIVE; RESISTS OXIDATION AT HIGHER TEMPERATURES

Refractive Index

INDEX OF REFRACTION: 2.654; 2.697

Rotatable Bond Count

RTECS Number

VW0450000

Safety Description

26-36

Tensile Strength

210 to 370 MPa (Ultimate)

Vapor Pressure

0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx)

MSDS