- Basic facts
- Particle size, silica content & stabiliser type
- Specific gravity and pH
- Storage, safety & packaging
Colloidal silica - basic facts about Klebosol
Colloidal silica particle size, silica content & stabiliser type
All formulations of Klebosol colloidal silica are stable suspensions of independent (or non-agglomerated) particles of silica (SiO2). A liquid-phase process is used to grow silica particles that are non-porous and spherical, resulting in a highly stable and homogeneous suspension. By varying the (1) particle size, (2) silica content and (3) stabiliser type in differing combinations, a full range of Klebosol formulations with unique characteristics and properties can be achieved:
By controlling particle growth during the manufacturing process, we are able to produce highly uniform suspensions in a variety of particle sizes. Particle size variation for a specific suspension is very narrow, and large volumes of Klebosol can be manufactured with excellent batch-to-batch consistency.
Depending on particle size and solid content, Klebosol can appear slightly opalescent to milky.
Particle size exhibits an inversely proportional relationship with respect to specific surface area:
The reactivity of Klebosol increases with the number of active sites, which is directly related to the specific surface area. Therefore reactivity is improved in formulations with a smaller particle size.
Klebosol can be formulated with differing concentrations of silica, depending on particle size:
|Available Klebosol grades|
|Specific surface (m2/g)||300||200||120||50|
|Particle size in nm||9||12||25||80|
|SiO2 30 %||✔||✔||✔||✔|
Klebosol colloidal silica formulations can be produced as either:
- Anionic when stabilised with cations such as Na+, K+, NH4+
- Cationic when the stabiliser is an Al derivative
Colloidal silica specific gravity & pH
Colloidal silica properties - storage, safety & packaging
|Polyethylene drum||220 litres||55 gallons|
|Polyethylene container||1000 litres||275 and 330 gallons|
|Bulk||20000 litres||5500 gallons|