Silicon rod, dia 2.5 cm, 99.9%
Order Silicon rod, dia 2.5 cm, 99.9% (CAS 7440-21-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.
About Silicon rod, dia 2.5 cm, 99.9%
Silicon rod, dia 2.5 cm, 99.9% sits in our metal Wires, Rods & Tubes section and ships worldwide from stock or short lead time. Identity at a glance (99.9%): CAS 7440-21-3, formula Si and molar mass 28.09 g/mol. Typical appearance is rod.
Use cases we see most often
- Electrodes & filaments
- Thermocouples & heating
- Materials research
- Organic synthesis
Storage and safety notes
Physical constants on file: melting point 1410 °C, boiling point 2355 °C and density 2.33 g/mL at 25 °C. It carries the GHS signal word Danger (H228 and H320), so wear gloves and eye protection and work with good ventilation.
Standard pack sizes are 100 mm, and custom quantities are quoted on request. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Electrodes & filaments
- Thermocouples & heating
- Materials research
- Organic synthesis
Applications
Specifications and identifiers
| Product name | Silicon rod, dia 2.5 cm, 99.9% |
|---|---|
| Catalogue number | ZX-015652 |
| CAS number | 7440-21-3 |
| IUPAC name | silicon |
| Molecular formula | Si |
| Molar mass | 28.09 g/mol |
| Exact mass | 27.9769 |
| Purity / assay | 99.9% |
| Physical form | Solid |
| Appearance | Rod |
| Melting point | 1410 °C |
| Boiling point | 2355 °C |
| Density | 2.33 g/mL at 25 °C |
| H-bond donors / acceptors | 0 / 0 |
| Topological polar surface area | 0 Ų |
| HS code | 28046900 |
| InChIKey | XUIMIQQOPSSXEZ-UHFFFAOYSA-N |
| SMILES | [Si] |
| PubChem CID | 5461123 |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H228Flammable solid
- H320Causes eye irritation
Precautionary statements P210, P240, P241, P264 + P265, P280, P305 + P351 + P338, P337 + P317, P370 + P378
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 100 mm | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Silicon rod, dia 2.5 cm, 99.9%
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Other grades with CAS 7440-21-3
All 21 grades- CAS
- 7440-21-3
- Formula
- Si
- MW
- 28.09 g/mol
- CAS
- 7440-21-3
- Formula
- Si
- MW
- 28.09 g/mol
- CAS
- 7440-21-3
- Formula
- Si
- MW
- 28.09 g/mol
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