Fumed Silica BET250 hydrophilic

QY250 is a hydrophilic fumed silica with a specific surface area of 250m2/g, It is a kind of high purity white colloidal powder. PropertiesReinforcing filler in elastomersRheology and thixotropy control of liquid systems, binders, polymers, etc.Used as anti-setting, thickening, anti-sagging agent.Improvement of free flow and anti-caking characteristics of powders.High transparency.

Technical date
BET surface area	250±20m2/g
PH	3.8-4.5
Loss on drying(2h 105°C)	≤1.5%
Loss on ignition(2h 1000°C, base on material dried for 2h 105°C)	≤2.5%
Sieve residue(45μm)	≤0.05%
Tamped density(base on material dried for 2h 105°C)	25-60g/L
Silica content(base on ignited material)	≥99.8%
Carbon content(base on material dried for 2h 105°C)	≤0.2%
Chloride content(base on material dried for 2h 105°C)	≤0.025%
Ferric oxide(base on material dried for 2h 105°C)	≤0.003%
Titanium oxide(base on material dried for 2h 105°C)	≤0.03%
Alumina(base on material dried for 2h 105°C)	≤0.05%

The date present in this document is base on our best knowledge. We disclaim any warranty and liability whatsoever as to accuracy and completeness of such information as well as to the potential infringement of any proprietary rights. We reserve the right to alter product constants wuthin the scope of technical progress or new developments. Any user of our products shall bear the full risk connected to their properties and fitness for any purpose.ApplicationPaints and CoatingUnsaturated polyester reins and FilmsElastomers, especially HTV and RTV Silicon rubberAdhesives and SealantsPrinting inksPlant protectionCosmetics

Fumed Silica BET250 hydrophilic