Introduction of different specifications of Evonik Degussa colloidal silica

Created on 2024.12.28

Introduction of different specifications of Evonik Degussa colloidal silica

Product specification

Parameter	AEROSIL 200 Pharma	AEROSIL 200 VV Pharma	AEROSIL R972 Pharma	AEROPERL 300 Pharma
BET specific surface area (m²/g)	200	200	110	300
Size of primary particles	12nm	12nm	12nm	30μm
Compaction density (g/l)	Approximately 50	Approximately 120	Approximately 50	Approximately 280
pH value (4% aqueous solution)	3.5 - 4.5	3.5 - 4.5	-	3.5 - 5.5
Weight loss on drying * (at 105℃ for 2 hours)	≤1.5	≤1.5	-	≤2.5
Loss on ignition * (at 1000℃ for 2 hours after dehydration)	≤1.0	≤1.0	≤6.0	≤2.0
SiO₂ content (by weight)	≥99.8	≥99.8	≥99.8	≥99.8
Function	Carrier, flow - aiding, thickening, oil - absorbing	Carrier, flow - aiding, thickening, oil - absorbing	Flow - aiding, thickening, oil - absorbing	Carrier, oil - absorbing

Use:

This product is mainly used as lubricant, anti-stick agent, flow aid. It has a large adsorption force for drugs, and its hydrophilic ability is strong, accelerating the disintegration of tablets, and the disintegration is very fine. It is especially suitable for the granulation of oil and slime drugs. It can also be used as suspension aid and thickener for liquid preparations. It is an excellent multi-purpose excipient.

Storage:

It should be sealed and stored in a dry place away from volatile substances for two years.

The news and information released by Zhonglian Chemical is provided solely for informational purposes and is intended only for reference and communication among industry professionals. It does not guarantee the accuracy and completeness of such information. You should not use this information to replace your own independent judgment; therefore, you shall bear the risks arising from any use of the information, and Zhonglian Chemical shall not be held liable. In case of any infringement, please contact us for removal.

Contact

Leave your information and we will contact you.