Silicon powder, - 70 + 170 mesh, 99.999%
Buy Silicon powder, - 70 + 170 mesh, 99.999% (CAS 7440-21-3) from Zemixal. Lab and bulk packs, batch COA, fast global delivery.
About Silicon powder, - 70 + 170 mesh, 99.999%
Researchers and plant chemists source Silicon powder, - 70 + 170 mesh, 99.999% from Zemixal for routine and specialised work. Key data (Synthesis): CAS 7440-21-3, formula Si and molar mass 28.09 g/mol. Expect grey to dark grey powder.
Where it is used
- Powder metallurgy
- Additive manufacturing
- Chemical synthesis
- Organic synthesis
Safe handling
Physical constants on file: melting point 1410 °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. For transport it ships as UN UN 1346.
Order it in 10 g, 50 g, 1 kg and 4 x 25 kg packs or ask for a bulk quotation. Every shipment includes 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, - 70 + 170 mesh, 99.999% |
|---|---|
| Catalogue number | ZX-015256 |
| CAS number | 7440-21-3 |
| IUPAC name | silicon |
| Molecular formula | Si |
| Molar mass | 28.09 g/mol |
| Exact mass | 27.9769 |
| Grade | Synthesis |
| Purity / assay | 99.999% |
| Physical form | Powder |
| Appearance | Grey to dark grey powder |
| Melting point | 1410 °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 |
| Synonyms | Silicon high purity |
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
| 10 g | Quoted on request | |
| 50 g | Quoted on request | |
| 1 kg | Quoted on request | |
| 4 x 25 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, - 70 + 170 mesh, 99.999%
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What are the formula and molar mass of Silicon powder, - 70 + 170 mesh, 99.999%?
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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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