Address:

Industrivej 9 – DK-3540 Lynge

Phone:

+45 47 17 18 55

Email:

Opening Hours:

Mon-Thu 8:30 - 16:30 & Fri 8:30 - 16:00

Specifications

Specifications




Typical General Properties
? Apperance – Fluffy white powder
? Crystal structure of SiO2 – Amorphous

Hydrophilic Grades

Property120150200
300380
SiO2 min. wt%99,999,999,999,999,9
Fe2O3 max. wt%0,0030,0030,0030,0030,003
Al2O3 max. wt%0,050,050,050,050,05
TiO2 max. wt%0,030,030,030,020,02
pH value3,6-4,53,6-4,53,6-4,53,6-4,53,6-4,5
Loss on drying
max. wt% (2hrs at 105°C)
1,01,01,01,51,5
Ignition loss max.
wt% (2hrs at 1000°C)
11122
Bulk density, g/dm340-6040-6040-6040-6040-60
compacted density, g/dm3120-140120-140120-140110-140-
BET surface area, m2/g120±20150±20200±25300±30380±40
Sieve residue max.
wt% (acc. to Mocker 4,5μm)
max. 0,06max. 0,06max. 0,04max. 0,04max. 0,05

Hydrophobic Grades

PropertyAM-1-120AM-1-175AM-2-120
SiO2 min. wt%99,0-99,399,0-99,599,00-99,5
Fe2O3 max. wt%0,010,01 ≤ 0,01
Al2O3 max. wt%0,050,05 ≤ 0,05
TiO2 max. wt%0,030,03 ≤ 0,03
pH value≥ 3,9≥ 3,9 ≥ 3,6
Loss on drying
max. wt% (2hrs at 105°C)
< 0,5< 0,5 -
Ignition loss max.
wt% (2hrs at 1000°C)
≤ 2≤ 2 ≤ 6,2
Bulk density, g/dm340-5040-5050-60
compacted density, g/dm351-10051-100-
BET surface area, m2/g120±20 *170±25 *110 ±20
Hydrophobicity % **> 99,0> 99,0 > 99,0


* is not normalized, but actually maintained
** at boiling in the water for 30 min.



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