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Specifications
stabilizer colloidal silica1binder of fireproof materials
2coating industry
3paper making industry
Detailed Product Description
NH4-stabilizer colloidal silica (silicon dioxide,silica sol)Particle size 8-20(nm),low impurity, high diaphaneity, etc.
NH4-stabilizer colloidal silica (silicon dioxide,silica sol)
There are five types of NH4-stabilizer including NS-10, NS-15, NS-20, NS-25 and NS-30.Their standards are:
Designation | Model and Standard | ||||
NS-10 | NS-15 | NS-20 | NS-25 | NS-30 | |
Appearance | Slight milky transparent to translucent liquid | ||||
SiO2 | 10±1% | 15±1% | 20±1% | 25±1% | 30±1% |
Na2O (wt%) | ≤0.1% | ||||
PH (20°C) | 8.5-10.0 | ||||
Density (20°C,g/cm3) | 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 SiO2 crystalline deposits.
If you want to remove the deposition from empty drums, use a 10-percent NaOH solution at 50~60.
