Silicon powder, 98.5%

Name: Silicon powder, 98.5%
Brand: Vaqora Chemicals
SKU: VQ-016202

About Silicon powder, 98.5%

Vaqora Chemicals supplies Silicon powder, a metal powder registered under CAS number 7440-21-3 at a purity of 98.5%. With the molecular formula Si, it has a molar mass of 28.09 g/mol. Systematically, it is named silicon. Alternative names: Silicon metal powder and Si powder.

The product is provided as a powder. Key physical data: a boiling point of 2355 °C and a density of 2.33 g/mL at 25 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include powder metallurgy, additive manufacturing and chemical synthesis. Our customers for this product work in academic and industrial research and metallurgy and mining.

Available in 100 g, 500 g, 5 kg and 25 kg packs, Silicon powder is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Powder metallurgy
Additive manufacturing
Chemical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Silicon powder, 98.5%
Catalogue No.	VQ-016202
CAS Number	7440-21-3
IUPAC name	silicon
Molecular formula	Si
Molecular weight	28.09 g/mol
Exact mass	27.9769
Purity / assay	98.5%
HSN code	28046900
InChIKey	XUIMIQQOPSSXEZ-UHFFFAOYSA-N
SMILES	[Si]
PubChem CID	5461123

Physical properties
Physical form	Powder
Appearance	Powder
Boiling point	2355 °C
Density	2.33 g/mL at 25 °C
H-bond donors / acceptors	0 / 0
TPSA	0 Å²

Safety & hazard information (GHS)

Flammable

Signal word: Danger

Hazard statements

H228Flammable solid
H320Causes eye irritation

Precautionary statements: P210, P240, P241, P264 + P265, P280, P305 + P351 + P338, P337 + P317, P370 + P378

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7440-21-3

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CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

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Silicon nanopowder, APS 130 nm, 99.5%

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Formula: Si
MW: 28.09 g/mol

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Silicon Nanopowder, APS 20-30 nm, 98%+

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Formula: Si
MW: 28.09 g/mol

VQ-017374

Silicon Nanopowder, APS 30-50 nm, 98%

CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

VQ-017375

Silicon Nanopowder, APS 50-70 nm, 98%

CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

VQ-017376

Silicon optical (mono crystalline) windows, 170 mm dia, 25 mm thick, 99.999%

CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

VQ-018093

Silicon optical (mono crystalline) windows, 25 mm dia, 3 mm thick, 99.999%

CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

VQ-018094

Silicon optical (mono crystalline) windows, 30 mm dia, 10 mm thick, 99.999%

CAS: 7440-21-3
Formula: Si
MW: 28.09 g/mol

VQ-018095

All 21 products with CAS 7440-21-3 →

Frequently asked questions

What is the CAS number of Silicon powder, 98.5%?

The CAS Registry Number of Silicon powder, 98.5% is 7440-21-3. It is also known as Silicon metal powder, Si powder.

What is the molecular formula and molecular weight of Silicon powder, 98.5%?

Silicon powder, 98.5% has the molecular formula Si and a molecular weight of 28.09 g/mol. Its IUPAC name is silicon.

Which grade and pack sizes of Silicon powder, 98.5% can I order?

We supply Silicon powder, 98.5% in (98.5%) grade, in 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Silicon powder, 98.5%?

Yes. Every lot of Silicon powder, 98.5% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Silicon powder, 98.5% be shipped internationally?

Yes. Silicon powder, 98.5% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.