What is Silica Gel?

What is Silica gel Bulk Raw Container

Silica gel is a porous and amorphous form of silicon dioxide, commonly used as a desiccant to absorb moisture and humidity. Silica gel can be classified into two main types: Type A and Type B. The primary difference between them lies in their absorption capacities and physical characteristics. Despite which type the silica gel is, silica gel overall has an important characteristic, which is its regenerative ability. Even if it is saturated with moisture, it can be dehydrated and restore its hygroscopicity through heating or baking.

indicating silica gel
Bulk Raw Silica Gel
Silica Gel

What is Type A silica gel desiccant?

Type A Silica Gel Desiccant is a commonly used desiccant. Type A Silica Gel Desiccant is usually colorless, transparent or slightly white in the form of granules or spheres. It has a strong hygroscopic property in environment with RH level from 25% to 50%.

Type A silica gel can also generate Indicating silica gel by incorporating a special dye or indicator into the silica gel during the process of acidification. When the silica gel is dry, it typically appears in a specific color (often orange or green, depending on the manufacturer). As it absorbs moisture from the surrounding environment, the color gradually changes. This color change serves as a visual indicator of the moisture-absorbing capacity of the silica gel. The color-changing feature of Indicating silica gel makes it particularly useful for applications where it’s important to monitor and control humidity levels.

What is Type B silica gel desiccant?

The pore structure of Type B silica gel is relatively larger, resulting in a smaller surface area. Type B silica gel has a higher moisture-absorption capacity in high humidity environments. However, under low humidity environments, Type B silica gel’s performance is not as outstanding as Type A silica gel’s. Furthermore, Type B silica gel typically does not possess the function of a humidity indicator. This means that unlike Type A silica gel, it won’t change color during the moisture absorption process to indicate the level of moisture absorption.
Type B Silica Gel

What is the method for producing raw materials for silica gel desiccant?

Silica gel desiccant is produced from sodium silicate, mixed with sulfuric acid in a controlled reaction, forming fine-pored silica gel particles. After aging and washing to remove impurities and acid traces, the wet gel is dried via air drying or spray drying. The production parameters, including reaction conditions and drying methods, shape the pore size and absorption traits, influencing its applicability as a moisture-absorbing material.

What are the characteristics of silica gel desiccant?

Powerful moisture absorption

Powerful moisture absorption

Type A silica gel desiccants can absorb a significant amount of moisture rapid in environments with RH 20%-50%. Type B silica gel desiccants are excellent under high humidity environments.
Stable chemical properties

Stable chemical properties

Silica gel itself is a highly stable substance with strong resistance to acids and bases and does not undergo chemical reactions.

Good thermal stability

Good thermal stability

Silica gel can maintain stability without decomposition or deformation under high temperature conditions.

Regeneration capability

Regeneration capability

After absorbing moisture, both Type A and Type B silica gel desiccants can be regenerated through baking or heating, allowing for multiple uses.

Environmentally friendly and non-toxic

Environmentally friendly and non-toxic

Silica gel desiccant is non-toxic to humans and is environmentally friendly due to its regenerability.

Cost-Effective

Cost-Effective

The regenerative nature of silica gel desiccants reduces the need for frequent replacements, offering a cost-effective solution.

What can Silica gel desiccant be used for?

Silica gel desiccants play a crucial role in maintaining prouct quality and longevity. Their regenerative ability, stability in various conditions, and environmentally friendly nature contribute to their widespread use in diverse applications.

Packaging

Storage

Electronics

Industrial Setting

Multi Applications

Transportation

0
    0
    Your Cart
    Your cart is emptyReturn to Shop

      Email Us