Silicic acid hydrate, extra pure, precipitated heavy, Supelco®

Supplier: Merck


M-Clarity™ quality level = MQ200

1.00656.1000 1.00656.9020
1.00656.1000EA 389 GBP
1.00656.1000 1.00656.9020
Silicic acid hydrate, extra pure, precipitated heavy, Supelco®
Silicic acid hydrate
Formula: SiO₂·xH₂O
MW: 60,09 g/mol (anhy)
Storage Temperature: Ambient
MDL Number: MFCD00054122
CAS Number: 10279-57-9
EINECS: 231-545-4

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Specification Test Results

Solubility Insoluble at 20 °C
Melting Point 1710 °C
Molar Mass 60.08 g/mol
Bulk Density 60 kg/m3
Density 2 g/cm3 (20 °C)
Hill Formula O2Si *x H2O
Chemical Formula SiO2 * x H2O
Bulk density 60 kg/m3
Storage temperature +5...+30 °C
Identity Passes test
Assay ≥99%
Chloride (Cl) ≤0,05%
Heavy metals (as Pb) ≤0,005%
Fe (Iron) ≤0,03%
With hydrofluoric acid non volatile matter ≤1%
Loss on ignition 10 - 20% at 1000 °C
Particle size 0,1 mm

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