Silicon dioxide 99.0-100.5% (calcined substance, KT), colloidal dispersion, EMPROVE® ESSENTIAL E551, NF, JP, Ph. Eur., extra pure suitable for use as excipient, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
Certificates
About this item
Synonyms: Silicon(IV) oxide, Silicium dioxide, Silicium (IV) oxide
CAS Number:7631-86-9
Formula:SiO₂
MDL Number:MFCD00011232
Boiling Pt:2230
Density:2.2 g/cm³ (20 °C)
Molecular Weight:60.08 g/mol
Melting Pt:1710 °C
Merck Index:14,08493
Storage Temperature:Ambient
EINECS:231-545-4
Specifications
- Environmentally Preferable:
Specifications
Specification Test Results
- Identity:Passes Test
- Assay (Calculated on Calcined Substance):99.0 - 100.5%
- Substances Soluble in Water:≤5%
- pH-value (4%, water):3.5 - 5.5
- Chloride (Cl):≤0.011%
- Heavy Metals (as Pb):≤0.0025%
- Al (Aluminium):≤0.0010%
- As (Arsenic):≤0.0003%
- Ca (Calcium):Conforms
- Fe (Iron):≤0.0500%
- Hg (Mercury):≤0.0001%
- Pb (Lead):≤0.0005%
- Pb (Lead) (ICP):≤0.0005%
- Residual solvents (ICH Q3C):Excluded by Production Process
- Loss on Ignition (Dried Substance):≤2.0%
- Loss on Drying:≤2.5%
- Spec. Surface:200 ± 25
- Volume Test:Passes Test
Specification Test Results
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