Silicon rod, dia 25 mm, 99.99%

Name: Silicon rod, dia 25 mm, 99.99%
Brand: Vaqora Chemicals
SKU: VQ-016595

About Silicon rod, dia 25 mm, 99.99%

Vaqora Chemicals supplies Silicon rod, dia 25 mm, a metal wire / rod registered under CAS number 7440-21-3, specified at 99.99% purity. With the molecular formula Si, it has a molar mass of 28.09 g/mol. Systematically, it is named silicon.

The product is provided as a rod. Literature values give a melting point of 1410 °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. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span electrodes and filaments, thermocouples and heating, materials research and organic synthesis. It is used across academic and industrial research, metallurgy and mining and electronics and semiconductors.

Vaqora Chemicals supplies Silicon rod, dia 25 mm in 100 mm packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Electrodes & filaments
Thermocouples & heating
Materials research
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Silicon rod, dia 25 mm, 99.99%
Catalogue No.	VQ-016595
CAS Number	7440-21-3
IUPAC name	silicon
Molecular formula	Si
Molecular weight	28.09 g/mol
Exact mass	27.9769
Purity / assay	99.99%
HSN code	28046900
InChIKey	XUIMIQQOPSSXEZ-UHFFFAOYSA-N
SMILES	[Si]
PubChem CID	5461123

Physical properties
Physical form	Solid
Appearance	Rod
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 rod, dia 25 mm, 99.99%?

The CAS Registry Number of Silicon rod, dia 25 mm, 99.99% is 7440-21-3.

What is the molecular formula and molecular weight of Silicon rod, dia 25 mm, 99.99%?

Silicon rod, dia 25 mm, 99.99% 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 rod, dia 25 mm, 99.99% can I order?

We supply Silicon rod, dia 25 mm, 99.99% in (99.99%) grade, in 100 mm packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Silicon rod, dia 25 mm, 99.99%?

Yes. Every lot of Silicon rod, dia 25 mm, 99.99% 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 rod, dia 25 mm, 99.99% be shipped internationally?

Yes. Silicon rod, dia 25 mm, 99.99% 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.