• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Organosilica Polymer, Amorphous, Polar-embedded Octadecylsilyl, End-capped
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Organosilica Polymer, Amorphous, Polar-embedded Octadecylsilyl, End-capped

Synthetic, spherical hybrid particles containing both inorganic (silica) and organic (organosiloxanes) components, chemically modified at the surface by the bonding of polar- embedded octadecylsilyl groups. To minimise any interaction with basic compounds, it is carefully end-capped to cover most of the remaining silanol groups. The particle size is indicated after the name of the reagent in the tests where it is used.