Orange silica gel has the highest absorption power among other silica gels. This product is produced in two forms, granular and flakes, with many uses. There are many types of silica gel, including colorless, blue and orange, and two types, H and WS. These two types are used to separate sulfur, hydrocarbon, nitrogen and other heavy metals in gas transmission lines.
Since it will absorb water and alcohol with hydrogen bonding, it has more advantages compared to other absorbents. The high absorbency of this product has made it popular so that it will perform well in medium water vapor pressure and low temperature.
One of the main advantages of this product is its ability to regenerate. In such a way that it can be reused in case of heat up to 150 degrees Celsius, this feature is also one of the advantages of using it compared to other absorbents.
With the ability to absorb more than 40% of its weight, this material is used in industries such as: gas, petrochemical, oil, electricity, transportation, ancient works, pet nests and construction.
One of the main uses of this substance can be mentioned its use in the First and Second World War.
It does consists of silicon dioxide. This product is produced as a combination of sodium silicate with sulfuric acid under certain conditions and its structure is three-dimensional, consisting of silicon dioxide tetrahedral units.
This substance is non-toxic, odorless and non-flammable, does not cause metal corrosion and does not emit gas. This product is not soluble in water, but it dissolves in strong bases and hydrofluoric acid and has a stable structure. The ability to absorb this substance in dust and oil and oily substances is reduced. This product has the ability to be regenerated and shows a 5-10% loss of performance every time it is regenerated. The appropriate and effective temperature of this material is equal to 25 degrees Celsius and its effectiveness decreases at higher temperatures.
When the humidity is low, the smaller particles of this material absorb the existing vapor pressure, and as the vapor pressure increases, the larger particles of this material absorb moisture. The structure of this material is porous and irregular with a size between 3 and 60 and they are connected to each other. Since these pores are hydrophobic and are not connected to each other, they create a large surface and show good performance in the process of condensation and capillary absorption, and the performance of silica gel is very similar to a sponge and to millions of microscopic particles.