Silica gel nanoparticles 40% (w/w), colloidal dispersion in water, LUDOX® AS-40, Sigma-Aldrich®
Supplier: Merck
Certificates
About this item
CAS Number:63231-67-4
:7631-86-9
Formula:SiO₂
MDL Number:MFCD00011232
Boiling Pt:2230
Melting Pt:1710
Density:1.295 g/ml (25 °C)
Molecular Weight:60.08 g/mol
:M-Clarity™ quality level = MQ200
Specifications
- Environmentally Preferable:
Specifications
Specification Test Results
- Identity:Confirmed
- pH at 25 °C:9.0 - 9.5
- Specific gravity (at 60 °F):1.286 - 1.300
- Viscosity (at 25 °C):≤20 cps
- Silica:39.5 - 41.0%
- Ratio SiO₂/NiO₂:160 - 270
- Surface area:129 - 155 m²/g
- Sulphate (SO₄) as (Na₂SO₄):≤0.02%
- Assay (T):≥20%
- Sodium (Na):≤0.10%
- Particle size:20.0 - 24.0 nm
- Chloride content:≤0.01%
Specification Test Results
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