Shelf life of neutral silica sol

The main difference between different grades of Silica sol is particle size (divided into large particle size silica sol, small particle size silica sol) and pH value (divided into acid silica sol, neutral silica sol, alkaline silica sol). In addition, it is also distinguished according to its purity (metal ion content), concentration, stable ion type (such as Na+, K+, NH4+), etc. In addition, there are some special specifications of silica sol, such as:



(1) Surface modified silica sol (by organic coating or inorganic ion hybridization);



(2) Organic dispersed silica sol (organic liquid dispersion of nano silica particles);

(3) cationic silica sol (the surface of silica sol particles modified from negative charge to positive charge), and so on

Neutral aqueous sol is a colloidal solution of high molecular silica particles dispersed in water. Is the PH value between 4-8.5 for silica sol.

Appearance: milky white transparent liquid

Content: 25%

PH: 7-7.5

Na2O: < 0.2%

Specific gravity: 1.165 to 1.175

Viscosity: 1-5 mpa, s

1. This product can only be sealed in a clean and dry plastic bucket, and stored in a ventilated and dry place, storage temperature 5-40℃.

2. This product is non-toxic, non-dangerous goods, can be handled according to non-dangerous goods transport rules.

3. Containers that contact and store this product should be cleaned as soon as possible to prevent the accumulation of silica. If there is accumulation, it can be removed by heating and cleaning with 5%-10% sodium hydroxide solution at 50-60℃.

Mainly used in papermaking, coating and other PH sensitive industries.

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Product Categories : Silica Sol > Alkaline Sodium Silica Sol