Blue Indicating Silica Gel:
is a highly useful variety of desiccant, available in a range of mesh sizes to meet the needs of its many possible uses in industry. It does not react with chemicals, and is tasteless, odorless, non-toxic, and non-corrosive. It is extremely porous and can adsorb a large amount of water due to its vast amount of internal surface area. Since it is non-deliquescent, its size and shape always remain the same, and there are no chemical reactions or byproducts that result from the adsorption process. Even when saturated with water, the gel stays free-flowing, and dry. What makes blue indicating silica gel particularly useful is that, as it adsorbs water, it changes color, going from blue to purple to pink as the moisture is adsorbed.
Blue indicating silica gel, granular or beaded, has a great affinity for water. It will adsorb water more readily than most other liquids and gases, although it is also capable of adsorbing gasoline-range hydrocarbons, HC1, sulfur and nitrogen compounds, CO2, C12, and many other substances. Silica gel is commonly used across a broad range of industries for a variety of applications that call for a high-capacity desiccant or a selective adsorbent.
Silica gel has the ability to adsorb large amounts of water, as well as other substances, including aromatics, C12, CO2, and HC1. It controls moisture without corroding other substances or introducing toxicity, maintaining a consistent shape and size and not reacting with any other substances. By removing moisture, blue indicating silica gel, granular or beaded, can limit the rate at which mold can grow, thus slowing or preventing spoilage and other kinds of damage.
Silica gel products are widely used in retail applications, added to the packaging of everything from electronics to medicines to absorb moisture. Desiccant packets containing blue indicating silica gel are also utilized in compressed air systems. It is possible to prevent mechanical failures due to moisture buildup by circulating the compressed air through a silica gel packet, so that the moisture in it is adsorbed. This technique can be used in railway locomotives, as well as in industrial settings. Compressed air systems with moisture absorbers are used in conjunction with high-frequency satellite and radio transmission systems, too, to prevent radio signals from weakening.
Finally, blue indicating silica gel desiccant, is vitally important as a tool for preserving important documents in libraries and museums. These documents are often very sensitive to moisture damage due to their age, and by adsorbing the moisture in the air, silica gel packets protect the documents' integrity. It can also be used in cat litter and to absorb airborne moisture in long-term storage units.