Hydrophobic Fumed Silica

Product Description

Parameters Table

Application

Hydrophobic Fumed Silica

HB-620

Characteristic

FM-H-B620 is hydrophobic fumed silica which is produced by hydrophilic fumed silica with specific surface area of 200m²/g after chemical post-treatment with HMDS (Hexamethyldisilazane).

Physical and Chemical Data (Standard: GB/T 20020)

Test Item	Unit	Typical Value
Specific Surface Area(BET)	m²/g	170±30
Carbon Content(Based on material dried at 105℃ for 2 hours)	%	1.5～2.5
pH value in 4% dispersion	--	6.0～9.0
Loss on drying( 2 hours at 105℃)	%	≤ 0.7
Loss on ignition (2 hours at 1000℃, based on material dried for 2 hours at 105℃)	%	≤ 4.0
Tamped Density (Based on material dried at 105℃ for 2 hours)	g/L	40～60
Silica Content (Based on ignited material)	%	≥ 99.8

Hydrophobic Fumed Silica

HB-620

Characteristic

FM-H-B620 is hydrophobic fumed silica which is produced by hydrophilic fumed silica with specific surface area of 200m²/g after chemical post-treatment with HMDS (Hexamethyldisilazane).

Physical and Chemical Data (Standard: GB/T 20020)

Test Item	Unit	Typical Value
Specific Surface Area(BET)	m²/g	170±30
Carbon Content(Based on material dried at 105℃ for 2 hours)	%	1.5～2.5
pH value in 4% dispersion	--	6.0～9.0
Loss on drying( 2 hours at 105℃)	%	≤ 0.7
Loss on ignition (2 hours at 1000℃, based on material dried for 2 hours at 105℃)	%	≤ 4.0
Tamped Density (Based on material dried at 105℃ for 2 hours)	g/L	40～60
Silica Content (Based on ignited material)	%	≥ 99.8