215619

Silicon

powder, −325 mesh, 99% trace metals basis

• Formule linéaire : Si
• CAS Number: 7440-21-3
• Poids moléculaire : 28.09
• Numéro CE : 231-130-8
• Numéro MDL: MFCD00085311
• Code UNSPSC : 12141911
• ID de substance PubChem : 24852908
• Nomenclature NACRES : NA.23

Propriétés

• Niveau de qualité: 100
• Essai: 99% trace metals basis
• Forme: powder
• Taille des particules: −325 mesh
• pb: 2355 °C (lit.)
• Pf: 1410 °C (lit.)
• Densité: 2.33 g/mL at 25 °C (lit.)
• Chaîne SMILES: [Si]
• InChI: 1S/Si
• Clé InChI: XUIMIQQOPSSXEZ-UHFFFAOYSA-N

Description

Description générale

Silicon powder is a fine, gray powder. This silicon powder has been passed through a 325-mesh screen, meaning that the particles are small enough to pass through a sieve with openings that are approximately 44 thousandths of an inch in diameter. Silicon is a chemical element and is a hard, brittle, metallic-gray solid that is highly resistant to chemical attack and has a high melting point. Silicon is the second most abundant element in the Earth’s crust and is found in a variety of minerals.

Application

Silicon can be used as anode material in lithium-ion batteries.

It can be used to fabricate Al₂O₃-C refractories. The silicon powder generates β-Sialon whiskers which imparts high-temperature strength, slag resistance and thermal shock resistance of the refractories.

It can be incorporated into high-densitypolyethylene (HDPE) polymer composites. The addition of silicon powder enhancesthermal stability and thermal conductivity of composites.

Informations sur la sécurité

• Pictogrammes: GHS02
• Mention d'avertissement: Warning
• Mentions de danger: H228
• Conseils de prudence: P210 - P240 - P241 - P280 - P370 + P378
• Classification des risques: Flam. Sol. 2
• Code de la classe de stockage: 4.1B - Flammable solid hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)