EMAIL THIS PAGE TO A FRIEND
84878 Sigma-Aldrich

Silicon dioxide

purum p.a., acid purified, sand

Synonym: Cristobalite, Quartz, Sand, Silica

Purchase

Properties

Related Categories Adsorbents, Filter Aids and Drying Agents, Essential Chemicals, Other Drying Agents, Research Essentials
Quality Level   200
grade   purum p.a.
form   sand
quality   acid purified
loss   ≤0.1% loss on ignition, 900 °C
refractive index   n20/D 1.544 (lit.)
particle size   40-150 mesh
mp   1610 °C (lit.)
density   2.6 g/mL at 25 °C (lit.)
anion traces   chloride (Cl-): ≤100 mg/kg
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤100 mg/kg
  K: ≤500 mg/kg
  Na: ≤100 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg
SMILES string   O=[Si]=O
InChI   1S/O2Si/c1-3-2
InChI key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

Silicon dioxide is one of the important constituents of sedimentary rock bauxite, basalt fibers and ceramic fibers. It is added to cement for improving the hydraulic properties of cement.

Application

Silicon dioxide may be employed in the preparation of calcium silicide.

Caution

may contain dark particles

Analysis Note

metal and chloride traces refer to acid-soluble parts

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
nwg
RTECS 
VV7330000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles
Peer-Reviewed Papers
15

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?