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

Order Now

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%


Learn more

About VWR

Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...

Learn more About VWR