CSi
40.096 g/mol
Industrial ChemicalDanger
SILICON CARBIDE
CAS409-21-2EC206-991-8
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
abrasive and refractory material
Silicon carbide (SiC), also known as carborundum, is a hard compound of silicon and carbon that is mass‑produced as a powder and crystals for use as an abrasive. Through sintering, its grains can form very hard ceramics employed in high‑endurance applications such as disc brakes, clutches, and ballistic plates.
abrasive for grinding and cuttingrefractory material in high‑temperature ceramicsballistic plates in protective vests
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Chloromethyl 2-ethylbutyrate
CAS40930-71-0
intermediate for organic synthesis
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Isophorone diisocyanate
CAS4098-71-9
Polyurethane precursor for coatings and elastomers
ReferenceSame Category
Nysted reagent
CAS41114-59-4
Olefination reagent for ketones and aldehydes
ReferenceSame Category
Butyl 2-bromopropanoate
CAS41145-84-0
synthetic intermediate for organic synthesis
Safety Reference
Danger
H372Causes damage to organs through prolonged or repeated exposure
H225Highly flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H336May cause drowsiness or dizziness
H350May cause cancer
H370Causes damage to organs
Customs Tariff Classification
The international HS code for SILICON CARBIDE (CAS 409-21-2) is 2849.20.
HS code (international, 6-digit)
2849.20
EU CN code (8-digit)
2849 20 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
methanidylidynesilanylium
InChIKey
HBMJWWWQQXIZIP-UHFFFAOYSA-N
SMILES
[C-]#[Si+]
Synonyms (90)
- Annanox CK
- Betarundum
- Betarundum ST-S
- Betarundum UF
- Betarundum ultrafine
- Carbofrax M
- Carbolon
- Carbon silicide
- Carborundeum
- Carborundum
- Carborundum, CP
- Crystar
- Crystolon 37
- Crystolon 39
- DU-A 1
- DU-A 2
- DU-A 3
- DU-A 3C
- DU-A 4
- Densic C 500
- Green densic
- Green densic GC 800
- Hitaceram SC 101
- KZ 3M
- KZ 5M
- KZ 7M
- Nicalon
- SC 9
- SC 9 (Carbide)
- SCW 1
- SD-GP 6000
- SD-GP 8000
- SILICON CARBIDE
- Silaniumylidynemethanide
- Siliciumcarbid
- Silicon Carbide Micronwhisker
- Silicon carbide (SiC)
- Silicon carbide 1-3um
- Silicon carbide powder
- Silicon carbide whiskers
- Silicon carbide, -100 mesh
- Silicon carbide, -325 mesh
- Silicon carbide, beta-phase
- Silicon monocarbide
- Silicon(IV) carbide
- Siliziumkarbid
- Silundum
- Tokawhisker
- UA 1
- UA 2
- UA 3
- UA 4
- UF 10 (CARBIDE)
- UF 15
- ULTRAFINE (CARBIDE)
- [SiC]
- beta-Silicon carbide 0.5um
- carbidosilicon
- carbonite
- methanidylidynesilanylium
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