Is moisture absorber refill harmful? Generally speaking, hygroscopic agents are basically harmless to the human body. Most hygroscopic agents are chemically and biologically inert. If you eat a small amount by mistake, you can take milk or water to dilute it. However, it should be noted that hygroscopic agents are not food and cannot be eaten. , usually sealed and stored, if a damaged sachet of hygroscopic agent is found, it is recommended to discard it immediately.

Moisture absorber refills in different states have different components, and the types of commonly used moisture absorbents mainly include:

1. Solid moisture absorber refill

(1) Silicone

Silica gel is silicic acid gel, which is a highly active adsorption material. The main component is silicon dioxide. It has an open porous structure and strong adsorption. It can be used for gas drying, gas absorption, liquid dehydration, chromatographic analysis, etc.

(2) Calcium chloride

Calcium chloride is a salt composed of chlorine and calcium elements. Its chemical formula is CaCl2. It is slightly bitter and tasteless. It is white, hard fragments or granules. It is easy to absorb moisture and deliquescence in the air. Hygroscopic agents are generally stored in sealed containers. anhydrous calcium chloride.

2. Liquid moisture absorber refill

(1) Lithium chloride

Lithium chloride has strong hygroscopicity, and one lithium chloride molecule can be closely combined with at least two water molecules. When the lithium chloride solution and the air with a humidity of 90% reach a moisture balance, one lithium chloride molecule can absorb about 26 water molecules.

(2) Lithium bromide

The molecular formula of lithium bromide is LiBr. Anhydrous lithium bromide is a white cubic crystal or granular powder. It is easily soluble in water. The lithium bromide aqueous solution formed by the reaction with water is a colorless liquid with a salty taste, non-toxic, neutral or slightly alkaline. .

3. Gas moisture absorber refill

The gas hygroscopic agent is generally compressed air, which shrinks in volume and increases in pressure, and is mixed with humid air to achieve the purpose of diluting and dehumidifying the humid air.