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Silicon Dioxide (amorphous),&#;SiO2, 99.99% 4N High Purity Powder 

• Product Number:&#;PO&#;(100 g), PO&#;(1 kg) 
• Synonym: Silica, Silicic anhydride, Silicon dioxide amorphous, Silicon dioxide, Amorphous silica
  
• Formula: SiO2
• CAS Number: -86-9 
• Formula Weight: 60.08&#;g/mol
• Density: 2.196 &#;g/cm³ at 25°C 
• Melting Point: °C
• Color: white powder 
• Solubility: Insoluble in water
  
• Purity: 99.99% 4N (trace metal basis) 
• Particle Size: <300 mesh

Applications 

SiO2 (Silicon Dioxide or Silica) in its amorphous form is generally exploited in semiconductors to segregate conducting of differing areas. SiO2 has a high dielectric constant, mechanical resistance, and chemical selectivity. This selectivity makes it a good material in microelectronics and chromatography. Silicon Dioxide has been used in a wide range of applications such as resigns for separations, optical fibers, glasses, ceramics, and semiconductors.

Notes:&#;More detailed product information including SDS, certificate of analysis (COA), lead time and volume pricing are available upon request. 

Product Specifications  

Trace Metal Impurities (ppm) 

Fe 

<10 

&#; 

Cr

<2

Mg 

The company is the world’s best silicon dioxide nanoparticles supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

<2

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Ti

<2

Ni

<10

&#; 

Cu

<5

Analysis by ICP&#; 

References 

P.M. Dove, N. Han, A.F. Wallace, and J.J. De Yoreo. Kinetics of amorphous silica dissolution and the paradox of the silica polymorphs. PNAS, Vol 105(29), pgs -, .

A. Di Pomponio, A. Continenza, L. Lozzi, M. Passacantando, S. Santucci, and P.Picozzi. Electronic properties of crystalline and amorphous SiO2 investigated via all-electron calculations and photoemission spectroscopy. Solid State Comm. Vol. 95(5) Pgs. 313 -317,

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