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AEROSIL® R 202

CAS Number
67762-90-7
Chemical Family
Silica

AEROSIL® R 202 is a hydrophobic fumed silica grade, treated with a polydimethylsiloxane. This product can be used in defoamer formulations for sedimentation stabilization and due to its high hydrophobicity as defoaming component.

Identification

Chemical Name

Hydrated Silica, Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-,hydrolysis products with silica, Silica gel, pptd., cryst.-free

Other characteristics

Brand
AEROSIL
Functions

Defoamer, Rheology Modifier, Thickener, Thixotrope, Viscosity Modifier

Markets
  • Adhesives & Sealants
  • Automotive & Transportation
  • Building & Construction
  • Consumer Goods
  • Electrical & Electronics
  • Healthcare & Pharma
  • Industrial
  • Personal Care
Appearance
Fluffy white powder
Shelf LIfe
2 years

Technical data

Table 1 of 1

13 rows
CharacteristicValueUnit
Unit Weight (Netto)10kg
HCI Content⁸,¹¹max. 0.025wt %
TiO₂ Content⁸max. 0.030wt %
Fe₂O₃ Content⁸max. 0.010wt %
Al₂O₃ Content⁸max. 0.050wt %
SiO₂ Content⁸min. 99.8wt %
Carbon Content3.5 - 5.0wt %
pH Value⁵ (4%, Aqueous dispersion)4.0 - 6.0 10wt %
Loss on Ignition⁴,⁷ (2h at 1000°C)4.0 - 6.0wt %
Loss on Drying³ (2h at 105°C, when leaving the plant)max. 0.5wt %
Tamped Density²60g/l
BET Surface Area (BET¹)80 - 120m²/g

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