Silicon(IV) nitride, Electronic Grade, 99.85% (metals basis), 90+% alpha-phase

Catalog No.	Quantity
AA4911309	10 g
AA4911318	50 g

Catalog No. AA4911309 Supplier Thermo Scientific Chemicals Supplier No. 04911309

Description

CAS: 12033-89-5 | N4Si3 | 140.28 g/mol

Silicon nitride bearings are both full ceramic bearings and ceramic hybrid bearings with balls in ceramics and races in steel. Silicon nitride ceramics have good shock resistance compared to other ceramics. Silicon nitride is used for rocker arm pads for lower wear, turbocharger for lower inertia and less engine lag, and in exhaust gas control valves for increased acceleration.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 12033-89-5
• Molecular Formula: N4Si3
• Molecular Weight (g/mol): 140.28
• MDL Number: MFCD00011230
• InChI Key: HQVNEWCFYHHQES-UHFFFAOYSA-N
• Synonym: silicon nitride, silicon nitride si3n4, unii-qhb8t06idk, qhb8t06idk, silicon iv nitride, alpha phase, trisilicon tetranitride, nierite, nano silicon nitride, silicon iv nitride, silicon nitride, amorphous
• PubChem CID: 3084099
• IUPAC Name: Silicon nitride
• SMILES: N12[Si]34N5[Si]11N3[Si]25N41

• Melting Point: 1900°C (sublimation)
• Color: Gray
• Physical Form: Powder
• Quantity: 10 g
• Linear Formula: Si₃N₄
• Merck Index: 14,8497
• Solubility Information: Insoluble in water.
• Formula Weight: 140.28
• Percent Purity: 99.85%
• Grade: Electronic
• Odor: Odorless
• Density: 3.2 g/mL
• Assay: (metals basis)
• Chemical Name or Material: Silicon (IV) nitride, ≥90% alpha-phase

Safety and Handling

EINECSNumber	234-796-8
RTECSNumber	VW0650000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only