Friday, August 19, 2011

Low-Na stabilizer colloidal silica

Low-Na stabilizer colloidal silica (silicon dioxide,silica sol)Particle size 8-20(nm),low impurity, high diaphaneity, etc.

Low-Na stabilizer colloidal silica can be divided into LS-10LS-15LS-20LS-25LS-30 based on its different SiO
2
content.
Designation
Model and Standard
LS-10
LS-15
LS-20
LS-25
LS-30
Appearance
Slight milky transparent to translucent liquid
SiO
2
(wt%)
10±1%
15±1%
20±1%
25±1%
30±1%
Na
2
O (wt%)
≤0.20%
PH (20°C)
8.5-10.0
Density (20°C,g/cm
3
)
1.06-1.08
1.08-1.10
1.12-1.14
1.15-1.17
1.19-1.21
Viscosity (20°C,mPaS)
≤10
Particle size (nm)
8-20
Stability
Two years

Packing & Storage
Colloidal silica is packed in 25kg,250kg or 1000kg plastic drums.
Store the colloidal silica at a temperature between 0 and 50, avoid exposure to the air, and insulate it from the sun.
Wash the empty drums as quickly as possible to avoid SiO
2
crystalline deposits.
If you want to remove the deposition from empty drums, use a 10-percent NaOH solution at 50~60.

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