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< 45 μm Silicon powder, min. 99.0 %, silicon powder 7440-21-3, fine

Product information "< 45 μm Silicon powder, min. 99.0 %, silicon powder 7440-21-3, fine"

This silicon powder is mechanicallyproduced from high-purity starting material with at least 99.0% silicon.


The small particle size gives the material increased reactivity and sintering activity, making it particularly interesting for applications such as ignition systems, gas generators, technical ceramics, and high-temperature applications.


Chemical analysis (typical values):
  • Si: > 99.0%
  • Al: 125 ppmw
  • Ca: 69 ppmw
  • Fe: 935 ppmw
  • Ti: 189 ppmw
  • P: 26 ppmw
  • Cu: 63 ppmw
  • Cr: 80 ppmw
  • K: 48 ppmw
  • V: 97 ppmw
  • Ni: 45 ppmw
  • Na: 39 ppmw
Particle size distribution (typical values):

> 45µm: 15.0%
10-45µm: 45.0%
1-10µm: 35.0%
< 1µm: 3.0%

Signal word: ATTENTION!Flammable silicon powder 

Hazard statements 
 H228: Flammable solid 
 Precautionary statements 
 P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P402+P404: Store in a closed container in a dry place.
CAS-Nr.: 7440-21-3
Color: brown
Eisen (Fe): 935 ppmw
Kupfer: 63 ppmw
Phosphor: 26 ppmw
Produktcharakter: feines Pulver
Schüttdichte: 2,34 g/cm³
Si (Silizium): min. 99,0 %
Titan: 189 ppmw
kind of product: metal powder
material: Silizium
nominal particle size: < 45 µm
particle shape: irregular
purity: min. 99,0 %
zur GPSR-Informationspflicht: Hersteller + Verantwortliche Person: Werth-Metall, Ringstr. 41b, 99428 Grammetal, info@werth-metall.de

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