Silica gel nanoparticles_SC 40% w/w, colloidal dispersion in water, LUDOX® AS-40, Sigma-Aldrich®
Supplier: Merck
Danger
|
MQ200
420840-4L
420840-1L
SIAL420840-4LEA
130
EUR
SIAL420840-4L
SIAL420840-1L
Silica gel nanoparticles_SC 40% w/w, colloidal dispersion in water, LUDOX® AS-40, Sigma-Aldrich®
Silica gel
Used for ammonium stabilising counterion.
Formula:
SiO₂ MW: 60.08 g/mol Boiling Pt: 2230 Melting Pt: 1710 Density: 1.295 g/ml (25 °C) |
MDL Number:
MFCD00011232 CAS Number: 63231-67-4 |
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% |
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