Silicon pieces, 1-10 mm, 99.99999%

Name: Silicon pieces, 1-10 mm, 99.99999%
Brand: Vaqora Chemicals
SKU: VQ-016876

About Silicon pieces, 1-10 mm, 99.99999%

Listed under CAS 7440-21-3, Silicon pieces, 1-10 mm is a high-purity metal available from Vaqora Chemicals, specified at 99.99999% purity. The compound has the formula Si, corresponding to a molecular weight of 28.09 g/mol. The IUPAC name is silicon. Common synonyms include Silicon 7N.

In its supplied form it is pieces or chunks. Literature values give a melting point of 1410 °C and a density of 2.33 g/mL at 25 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for alloy preparation, evaporation sources and materials research. Our customers for this product work in academic and industrial research and metallurgy and mining.

Available in 25 g, 100 g and 5 x 1 kg packs, Silicon pieces, 1-10 mm is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Alloy preparation
Evaporation sources
Materials research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Silicon pieces, 1-10 mm, 99.99999%
Catalogue No.	VQ-016876
CAS Number	7440-21-3
IUPAC name	silicon
Molecular formula	Si
Molecular weight	28.09 g/mol
Exact mass	27.9769
Purity / assay	99.99999%
HSN code	28046900
InChIKey	XUIMIQQOPSSXEZ-UHFFFAOYSA-N
SMILES	[Si]
PubChem CID	5461123

Physical properties
Physical form	Solid
Appearance	Pieces or chunks
Melting point	1410 °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

Silicon granules 3-6 mm 99.99%

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

VQ-016875

Silicon nanopowder, APS 130 nm, 99.5%

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

VQ-017373

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

CAS: 7440-21-3
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 pieces, 1-10 mm, 99.99999%?

The CAS Registry Number of Silicon pieces, 1-10 mm, 99.99999% is 7440-21-3. It is also known as Silicon 7N.

What is the molecular formula and molecular weight of Silicon pieces, 1-10 mm, 99.99999%?

Silicon pieces, 1-10 mm, 99.99999% 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 pieces, 1-10 mm, 99.99999% can I order?

We supply Silicon pieces, 1-10 mm, 99.99999% in (99.99999%) grade, in 25 g, 100 g, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Silicon pieces, 1-10 mm, 99.99999%?

Yes. Every lot of Silicon pieces, 1-10 mm, 99.99999% 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 pieces, 1-10 mm, 99.99999% be shipped internationally?

Yes. Silicon pieces, 1-10 mm, 99.99999% 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.