Silicon dioxide 30% in water, colloidal dispersion, LUDOX® SM, Sigma-Aldrich®
Supplier: Merck
Synonyms:
Silicon(IV) oxide, Silicium dioxide, Silicium (IV) oxide
M-Clarity™ quality level = MQ100
420794-1L
420794-4L
SIAL420794-1LEA
54.9
EUR
SIAL420794-1L
SIAL420794-4L
Silicon dioxide 30% in water, colloidal dispersion, LUDOX® SM, Sigma-Aldrich®
Silicium dioxide
Formula:
SiO₂ MW: 60.08 g/mol Boiling Pt: 2230 Melting Pt: 1719 Density: 1.22 g/ml (25 °C) |
MDL Number:
MFCD00011232 CAS Number: 7631-86-9 Merck Index: 14,08493 |
Specification Test Results
Colour | Colourless or White |
Form | Liquid |
ICP Major Analysis (Silica component) | Confirmed |
Specific gravity at 60 °F | 1,209 - 1,227 |
pH at 25 °C | 9,3 - 10,3 |
Viscosity at 25 °C | 4,8 - 6,8 cps |
Silica | 29,0 - 31,0% |
Ratio of SiO₂/Na₂O | 45 - 56 |
Size (Surface area) | 320 - 400 (m²/g) |
Sulphate (as Na₂SO₄) | ≤0,06% |
Transmission | ≥74,0% |
Concentration | 30 wt% suspension in H₂O |
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