ZEMSIL SL-AK
≡ Nalco 1030Alkaline Colloidal Silica Dispersion
CAS 7631-86-9
Also equivalent to: Ludox AS-30
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30
%
SiO₂ Content
10–20
nm
Particle Size (DLS)
9–10.5
pH
Clear to opalescent liquid
Appearance
Specifications
| Property | Value | Unit |
|---|---|---|
| SiO₂ Content | 30 ± 1 | % |
| Particle Size (DLS) | 10–20 | nm |
| pH | 9.0–10.5 | — |
| Na₂O Content | ≤0.5 | % |
| Viscosity @ 25°C | ≤10 | mPa·s |
| Specific Gravity @ 25°C | 1.20–1.22 | — |
Applications
Refractory and investment casting binder (precision casting shells)Catalyst support and carrier for heterogeneous catalysisAnti-reflective coating for glass and solar panel surfacesPaper sizing and surface treatment for improved ink holdout
Key Features
- —Long shelf life exceeding 12 months in original sealed container
- —Versatile binder for high-temperature refractory applications up to 1600°C
- —Excellent film-forming properties upon drying — continuous, crack-resistant silica matrix
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