A Basic Guide to Indicating Silica Gel

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What is indicating silica gel?

Indicating silica gel is an indicator-type adsorbent with high added value and high technical content, which is made of fine-pored silica gel with high-activity adsorption material as the basic raw material. It is a high-grade adsorption desiccant.

Application of indicating silica gel 

1. It is mainly used for moisture absorption and rust prevention of instruments, meters, equipment, etc. under airtight conditions, and at the same time, it can intuitively indicate the relative humidity of the environment through its color from blue to red after moisture absorption.

2. Use with ordinary silica gel desiccant to indicate the degree of moisture absorption of the desiccant and judge the relative humidity of the environment.

3. As a silica gel desiccant for packaging, it is widely used in precision instruments, leather, shoes, clothing, food, medicine and household appliances.

Advantages of indicating silica gel

Visible

Since absolute ethanol and xylene are both colorless and transparent liquids, blue color-changing silica gel is placed in these two reagents, and the water state in the reagents can be observed with the naked eye without the need for equipment.

Fast working efficiency and high water absorption

When there is a lot of water in absolute ethanol or xylene, after putting in the color-changing silica gel, you can see a transparent band around the blue color-changing silica gel, and you can hear the sound of its popping. When the ambient temperature drops below 0 °C, the water absorption rate will slow down accordingly. In actual work, it is found that when the blue color-changing silica gel turns pink, it can continue to be used for about 10 days before reaching its saturated state of water absorption.

Safe and stable

Indicating silica gel is insoluble in water and any reagents, odorless and chemically stable

Inexpensive and widely used

A bottle of 500g indicating silica gel costs only 10 yuan. Discolored silica gel can be used to ensure tissue sections in all procedures that require anhydrous ethanol or xylene in pathological technical work, such as routine staining, frozen section staining, immunohistochemistry, special staining, cytology detection, and molecular pathology detection. It can also be used as an indicator to check the purity of purchased absolute ethanol and xylene.

Looking for an indicating silica gel supplier?

Minghui Technology acts as an experienced leading manufacturer for over 15 years. It's committed to R&D & sales of silica gel desiccant, container desiccant, calcium chloride desiccant, anti-mold sticker, air purifying deodorant bags, etc, which consistently provide professional moisture-proof and anti-mold solutions to many industries. If you need any indicating silica gel, please do not hesitate to contact us 

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