Evonik Degussa胶体二氧化硅的不同规格介绍

Utworzono 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
msgid "Compaction density (g/l)" msgstr "密实度 (g/l)"	Approximately 50	Approximately 120	Approximately 50	Approximately 280
pH value (4% aqueous solution)	3.5 - 4.5	3.5 - 4.5	I'm sorry, but it seems that the source text you provided is incomplete. Please provide the full text you would like me to translate into +po+.	3.5 - 5.5
Weight loss on drying * (at 105℃ for 2 hours)	≤1.5	≤1.5	I'm sorry, but it seems that the source text you provided is incomplete. Please provide the full text that you would like to have translated into +po+.	≤2.5
Loss on ignition * (at 1000℃ for 2 hours after dehydration)	``` ≤1.0 ```	``` ≤1.0 ```	≤6.0	≤2.0
SiO₂ 內容（按重量計）	≥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

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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.

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