Silica For Medicine Pharma Application

Fumed silica is with small particle size, large surface area, porous structure and special physical and chemical properties, these speciality gives fumed silica good adsorption ability and high bio-chem stability.When added into pharmaceuticals, fumed silica acts as anti-caking agent, drug carrier and excipient to prolong drug effect.

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Silica For Medicine Pharma Application

◆Description of products

GS-630 is a hydrophobic fumed silica which is created by subjecting  hydrophilic grades with BET of 380m2/g to chemical post-treatment with HMDS (Hexamethyldisilazane).

Hydrophobic fumed silica is made by hydrolyzing exertion chloroethane in oxy-hydrogen flame. From 2008 year till now, we began to produce fumed silica; the annual sales reached 1500 tons. Main used in paint and coating, as additive agent used to prevent subside, thickening, thixotropic agent and prevent sagging in liquid system. There is an effective changing in the aspect of liquid viscosity.

◆Application Scopes

Fumed silica is with small particle size, large surface area, porous structure and special physical and chemical properties, these speciality gives fumed silica good adsorption ability and high bio-chem stability.When added into pharmaceuticals, fumed silica acts as anti-caking agent, drug carrier and excipient to prolong drug effect.

◆The specification, feature and application

Properties (GS-630)

Unit

Typical Value

Testing Method

Specific Surface Area(BET)

m2/g

380±30

GB/T 20020

PH value in 4% dispersion

5.5~8.0

GB/T 20020

Loss on drying(2 hours at 105℃)

wt%

≤0.5

GB/T 20020

Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃)

wt%

≤4.0

GB/T 20020

Silica Content(Based on ignited material)

wt%

≥99.8

GB/T 20020

Tamped Density(Based on material dried at 105℃ for 2 hours)

g/L

40~60

GB/T 20020

Carbon Content (Based on material dried at 105℃ for 2 hours)

wt%

2.5~4.0

GB/T 20020