1. Safety

Our products, Nipsil and NIPGEL are amorphous, non-crystalline silica that does not have a crystal structure.
They are high-purity non-crystalline silica, and there is no risk of pulmonary silicosis or toxicity.

2. Physical characteristics

  • Fine white powder
  • Porous
  • Tasteless, odorless
  • True specific gravity: Approx. 2.00
  • Refractive index: 1.45 - 1.47

3. Chemical characteristics

Inert (however dissolves in hydrofluoric acid and strong bases.)

4. List of official standards related to Nipsil and NIPGEL

Standard name
Standard No. or designation
112926-00-8(Precipitated silica , including silicagel)
7631-86-9(Silicon dioxide(amorphous))
Chemical Substances Control Law Reference No.,
Industrial Safety and Health Law Reference No.
1-548 : Silicon dioxide
HS code
Name of Substance : Silica
EC No. : 231-545-4
Name of Substance : Silicon dioxide
Name of Substance : SILICON DIOXIDE
Approval section : §175.300 (resinous and polymeric coatings.), §177.2600 (Rubber articles intended for repeated use.)
Japanese Pharmaceutical Excipients
Hydrated Silicon Dioxide
The Japanese Standards of Quasi-drug Ingredients
Silicic Anhydride
The Japanese Pharmacopoeia
Light Anhydrous Silicic Acid
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