AKTIFIT Q

Calcined product, methacrylic functionalized.

Product characteristics	Unit	Testing method	AKTIFIT Q
Basic material			SILFIT Z 91
Functionalization			methacrylic
Color values L* Color values a* Color values b*		acc. to CIELAB	96.3 - 0.1 1.1
Particle size D₅₀ Particle size D₉₇	µm	acc. to ISO 13320	2.3 11.0
Residue > 40 µm	mg/kg	acc. to DIN EN ISO 787 part 18	20
Volatile matter at 105 °C	%	acc. to DIN EN ISO 787 part 2	0.2
Electrical conductivity	µS/cm	acc. to DIN EN ISO 787 part 14	not applicable
Density Bulk density Tamped density	g/cm³	acc. to DIN EN ISO 787 part 10 acc. to DIN ISO 903-1976 acc. to DIN EN ISO 787 part 11	2.6 0.35 0.60
Spec. Surface area (BET) Oil absorption	m²/g g/100 g	acc. to DIN ISO 9277 acc. to DIN EN ISO 787 part 5	8 65
Hardness silica/kaolinite	mg	acc. to Mohs	7/4.5
Refractive index n		sin α / sin β	1.55
Water solubility Acid solubility	%	acc. to DIN EN ISO 787 part 3 acc. to DIN 53770 (0,1 N HCL)	not applicable not applicable
Chemical Analysis: SiO₂ Al₂O₃ Fe₂O₃	%	acc. to DIN 51001 (RFA)	86 13 < 1
Mineralogical Composition: Neuburg silica Calcined kaolinite	%	Based on X-ray diffraction pattern analysis combined with Rietveld	60 40
Equilibrium moisture content at 25°C and 50% relative humidity and 80% relative humidity and 90% relative humidity	%	acc. to DIN 66138	0.04 0.06 0.07
Water absorption	ml/g	acc. to Baumann	≤ 0.1
hydrophobic			X
reactive			X