AEROSIL® R972 Pharma (Waterford)
- INCI/Chemical Name:
- Hydrophobic Colloidal Silica, Silica Dimethyl Silylate
- SKU:
- BP129632
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AEROSIL® R 972 Pharma is hydrophobic colloidal silica that has been modified by the addition of dimethyl silyl groups. It is approved for use in pharmaceuticals and for food contact articles, and in feed additives both in the USA and Europe (E551b).
AEROSIL® R 972 Pharma is supplied as a light, fine, white or almost white amorphous powder, not wettable by water. It is tested and released in accordance with the requirements of the current USP-NF, Ph.Eur and BP monographs for hydrophobic colloidal silica.
Features
Synthetic, high purity and excipient grade raw material
AEROSIL® R 972 Pharma does not absorb moisture
Excellent glidant and easy to use for formulations requiring gentle mixing
Stabilises suspensions and emulsions
Specific surface area 100 m2/g and narrow particle size distribution
Benefits
Absorbs less moisture. May offer an advantage in moisture-sensitive formulations
Desirable flow characteristics in powders, particularly if they are liable to adsorb surface moisture
Has less marked impact on the viscosity of solutions although it can stabilise the oil phase of water-oil emulsions
Can be used to make transparent gels
Applications
Emulsion stabilizer, suspending agent and viscosity-increasing agent for semi-solid formulations
Used to thixotropically control viscosity of gels
Glidant and anti-caking agent in powders and granules (solid-dosage forms)
Suitable for texturising elastomers (topical medical devices)