Silicon dioxide
SIGALD/84878 - purum p.a., acid purified, sand
Synonym: Cristobalite; Quartz; Sand; Silica
CAS Number: 60676-86-0
Empirical Formula (Hill Notation): O2Si
Molecular Weight: 60.08
EC Number: 238-878-4
MDL Number: MFCD00011232
Linear Formula: SiO2
Product Type: Chemical
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: ≤200 mg/kg | |
Ni: ≤50 mg/kg | |
Pb: ≤50 mg/kg | |
Zn: ≤50 mg/kg | |
density | 2.6 g/mL at 25 °C (lit.) |
form | sand |
grade | purum p.a. |
InChI | 1S/O2Si/c1-3-2 |
InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
loss | ≤0.1% loss on ignition, 900 °C |
mp | 1610 °C (lit.) |
particle size | 40-150 mesh |
quality | acid purified |
Quality Level | 200 |
refractive index | n |
SMILES string | O=[Si]=O |
Analysis Note: | metal and chloride traces refer to acid-soluble parts |
Application: | Silicon dioxide may be employed in the preparation of calcium silicide. |
Caution: | may contain dark particles |
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. |
RIDADR | NONH for all modes of transport |
WGK Germany | nwg |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
mp | 1610 °C (lit.) |
Density | 2.6 g/mL at 25 °C (lit.) |
Refractive Index | n |
UNSPSC | 12352300 |