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Ammonia Colloidal Silica (Silica sol)
Product Description
Characteristics:

Silica sol is a kind of colloid which is formed by nm-grade particles SiO2, dispersed in water.

With bigger specific surface of Si02 colloid particles, silica sol is widely used in precision casting, papermaking, textile and paint industry as inorganic adhesive. And is also used as catalyst and skidproof agent.

Traditional alkali/acid silica sol have been used in precision casting. Papermaking and paint industry for many years. Silica sol with special specifications is needed recently with the improvement of world technology. In order to meet this market, Oingdao Hai Yang Chemicals Co., Ltd has developed a series of new silica sol products.


Use

1. JX is a kind of silica sol of small sized particle diameter. Apart from characteristics of ordinary alkali silica sol, JX has small sized particle diameter, big specific surface, SO it has the advantages of good smooth finish and high precision in size, compared with ordinary alkali silica s01. It also has the special usage in storage battery

Industry.

2. JA is a kind of silica sol with ammonium as its stable agent. For ordinary silica sol, the exist of Na+is a

Disadvantage when at high temperature or with the exist of catalyst or when is used directly as catalyst. Thus JX has its advantage without Na+, compared with ordinary silica s01.

3. ZA is a kind of neutral silica sol. Compared with ordinary alkali silica sol, ZA has no need to adjust pH value to maintain its stability. So ZA is practical in coating, especially under high temperature in ceramics and catalyst.

4. JK is a kind of silica sol of high drying speed. Compared with ordinary silica sol when used in precision casting, JK has the advantage of shorter dry time, 1/2-1/3 of the ordinary time. Furthermore, it has improved its high temperature-resistant performance.


[Package]25kg/250kg/plastic drum.


[Storage&Transportation]

Keep at 0-40ºC, away from exposure and freezing condition. Before using,

It is forbidden to expose silica sol to air.


[Remarks]Feel free to contact us if you have special requirements.


Technical Data

ITEMSpecifications
JA-25JA-30ZK-30ZK-40DN-30SW-30
Stable equilibrium ionAmmoniumAmmoniumDeleting cationDeleting cationLow sodiumAcidic large particle
Average Dia, nm10-1210-11.59-119-1110.5-1316-19
SiO2,%25.0-26.030-3130-3140.0-41.030-3129.5-31
PH9.0-9.69.5-9.82.0-3.08.8-9.28.0-9.02.0-4.0
Viscosity (25ºC), MP a. S ≤77719-2577
Density (25ºC), g/cm31.19-1.211.19-1.211.19-1.211.28-1.301.19-1.211.19-1.21
Na2O,% ≤0.030.060.060.30.09-0.10.06
Ageing time, hr,, ≥--≥48--≥48
Turbidity NTU≤80-----
Chlorinity ppm--≤100≤100--
Specific surface m2/g-198-258----
Validity TimeOne yearOne yearOne yearOne yearOne yearHalf year


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