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Silicon carbide CAS#409-21-2

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Chemical Name：Silicon carbide

CAS No.:409-21-2

Molecular Formula：CSi

Molecular weight:40.1

Sample: Available

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Product Details

Products Description of Silicon carbide CAS#409-21-2

Silicon carbide, commonly known as diamond, is a ceramic compound formed by bonding silicon and carbon. Silicon carbide exists in nature in the form of a rare mineral called moissanite. Since 1893, silicon carbide powder has been used as an abrasive in large quantities. Sintering silicon carbide powder can produce hard ceramic silicon carbide particles, which can be used in materials that require high durability, such as automotive brake pads, clutches and bulletproof vests. It is also used in the manufacture of electronic devices such as light-emitting diodes and early radio detectors. Today, silicon carbide is widely used in the manufacture of high-temperature, high-voltage semiconductors.

Silicon carbide Chemical Properties

Melting point	2700 °C (lit.)
density	3.22 g/mL at 25 °C (lit.)
refractive index	2.6500
solubility	Soluble in molten sodium hydroxide, potassium hydroxide and in molten iron.
form	nanopowder
color	Green
Specific Gravity	3.22
Resistivity	107–200 (ρ/μΩ.cm)
Water Solubility	Soluble in molten alkalis (NaOH, KOH) and molten iron. Insoluble in water.
Crystal Structure	Cubic, Sphalerite Structure - Space Group F(-4)3m
Hydrolytic Sensitivity	1: no significant reaction with aqueous systems
Merck	14,8492
Exposure limits	ACGIH: TWA 10 mg/m3; TWA 3 mg/m3; TWA 0.1 fiber/cm3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3 NIOSH: TWA 10 mg/m3; TWA 5 mg/m3
Stability:	Stability
InChIKey	HBMJWWWQQXIZIP-UHFFFAOYSA-N
IARC	2A (Vol. 111) 2017
NIST Chemistry Reference	Silicon monocarbide(409-21-2)
EPA Substance Registry System	Silicon carbide (409-21-2)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
OEB	B
OEL	TWA: 10 mg/m3 (total)
WGK Germany	3
RTECS	VW0450000
TSCA	Yes
HS Code	28492000
Hazardous Substances Data	409-21-2(Hazardous Substances Data)

Product Application of Silicon carbide CAS#409-21-2

Due to its high thermal stability, high strength, high thermal conductivity and other characteristics, it is widely used in atomic energy materials, chemical equipment, high temperature processing, electric heating elements and resistors, etc. It is used in abrasives, grinding tools, advanced refractory materials and fine ceramics.

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