Silicon powder, max. particle size 45 μm, 99.5%
Order Silicon powder, max. particle size 45 μm, 99.5% (CAS 7440-21-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery.
About Silicon powder, max. particle size 45 μm, 99.5%
Silicon powder, max. particle size 45 μm, 99.5% is part of the Zemixal metal Powders range. Identity at a glance (99.5%): CAS 7440-21-3, formula Si and molar mass 28.09 g/mol. Typical appearance is silver to grey powder.
Common uses in the lab and plant
- Powder metallurgy
- Additive manufacturing
- Chemical synthesis
- Organic synthesis
Handling and storage
Literature values: melting point 1410 °C, boiling point 2355 °C and density 2.33 g/mL at 25 °C. Classified under GHS with signal word Danger and hazard statements H228 and H320. Read the SDS before first use. For transport it ships as UN UN 1346.
Available as 25 g, 100 g, 4 x 25 kg, 200 g and 1 kg. Larger or split packs can be arranged. 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
- Powder metallurgy
- Additive manufacturing
- Chemical synthesis
- Organic synthesis
Applications
Specifications and identifiers
| Product name | Silicon powder, max. particle size 45 μm, 99.5% |
|---|---|
| Catalogue number | ZX-015264 |
| CAS number | 7440-21-3 |
| IUPAC name | silicon |
| Molecular formula | Si |
| Molar mass | 28.09 g/mol |
| Exact mass | 27.9769 |
| Purity / assay | 99.5% |
| Physical form | Powder |
| Appearance | Silver to grey powder |
| 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 |
| UN number | UN 1346 |
| 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
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 4 x 25 kg | Quoted on request | |
| 200 g | Quoted on request | |
| 1 kg | 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 powder, max. particle size 45 μm, 99.5%
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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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