Silicon powder, −325 mesh, 99% trace metals b… 7440-21-3

Name: Silicon powder, −325 mesh, 99% trace metals basis
Brand: Vaqora Chemicals
SKU: VQ-016208

About Silicon powder, −325 mesh, 99% trace metals basis

Listed under CAS 7440-21-3, Silicon powder, −325 mesh is a metal powder available from Vaqora Chemicals at a purity of 99%. Its molecular formula is Si and its molecular weight is 28.09 g/mol. Its systematic (IUPAC) name is silicon.

The material typically appears as a grey to dark grey powder. Key physical data: a melting point of 1410 °C and a boiling point of 2355 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for powder metallurgy, additive manufacturing, chemical synthesis and organic synthesis. It is used across academic and industrial research and metallurgy and mining.

Available in 50 g, 250 g, 1 kg and 5 x 1 kg packs, Silicon powder, −325 mesh is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Powder metallurgy
Additive manufacturing
Chemical synthesis
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Silicon powder, −325 mesh, 99% trace metals basis
Catalogue No.	VQ-016208
CAS Number	7440-21-3
IUPAC name	silicon
Molecular formula	Si
Molecular weight	28.09 g/mol
Exact mass	27.9769
Purity / assay	99%
HSN code	28046900
InChIKey	XUIMIQQOPSSXEZ-UHFFFAOYSA-N
SMILES	[Si]
PubChem CID	5461123

Physical properties
Physical form	Powder
Appearance	Grey to dark grey powder
Melting point	1410 °C
Boiling point	2355 °C
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
UN number	UN 1346

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
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MW: 28.09 g/mol

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MW: 28.09 g/mol

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

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MW: 28.09 g/mol

VQ-017374

Silicon Nanopowder, APS 30-50 nm, 98%

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Formula: Si
MW: 28.09 g/mol

VQ-017375

Silicon Nanopowder, APS 50-70 nm, 98%

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Formula: Si
MW: 28.09 g/mol

VQ-017376

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

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Formula: Si
MW: 28.09 g/mol

VQ-018093

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

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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, −325 mesh, 99% trace metals basis?

The CAS Registry Number of Silicon powder, −325 mesh, 99% trace metals basis is 7440-21-3.

What is the molecular formula and molecular weight of Silicon powder, −325 mesh, 99% trace metals basis?

Silicon powder, −325 mesh, 99% trace metals basis 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, −325 mesh, 99% trace metals basis can I order?

We supply Silicon powder, −325 mesh, 99% trace metals basis in (99%) grade, in 50 g, 250 g, 1 kg, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Silicon powder, −325 mesh, 99% trace metals basis?

Yes. Every lot of Silicon powder, −325 mesh, 99% trace metals basis 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, −325 mesh, 99% trace metals basis be shipped internationally?

Yes. Silicon powder, −325 mesh, 99% trace metals basis is classified as hazardous (UN 1346), 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.