What is the main component of this calcium chloride desiccant? What is the principle?

The calcium chloride desiccant refers to a substance capable of removing moisture in a moist substance such as calcium sulfate and calcium chloride, and is dried by combining with water to form a hydrate; a physical calcium chloride desiccant such as silica gel and activated alumina is passed through Physically adsorb water for drying. The control of moisture is closely related to the yield of the product. In the case of food, under the proper temperature and humidity, the bacteria and mold in the food will multiply at an alarming rate, causing the food to spoil, causing moisture and color. change. Electronic products can also cause oxidation of metals due to excessive humidity, resulting in poor performance. The use of calcium chloride desiccant is to avoid the occurrence of defective products caused by excess water.

principle

Physical adsorption

Calcium chloride desiccant is suitable for preventing the moisture of instruments, meters, electrical equipment, medicines, food, textiles and other packaging items. Calcium chloride desiccant is also widely used in the sea, because the goods are often heated due to the temperature. The moisture is degraded, and the calcium chloride desiccant can effectively remove moisture and moisture, so that the quality of the goods is guaranteed.

1. Calcium chloride desiccant is used for moisture protection of bottled medicines and foods. Ensure the drying of the contents and prevent the growth of various molds.

2. Calcium chloride desiccant can be used as a general packaging calcium chloride desiccant for moisture protection.

3, calcium chloride desiccant can be conveniently placed in the packaging of various types of items (such as instrumentation, electronics, leather, shoes, clothing, food, medicine and household appliances, etc.) to prevent the article from being mildewed or rusted.

Chemical adsorption

1. Acidic calcium chloride desiccant: concentrated sulfuric acid, phosphorus pentoxide, used for drying acidic or neutral gases, wherein concentrated sulfuric acid can not dry hydrogen sulfide, hydrogen bromide, hydrogen iodide strong reducing acid gas; Phosphorus oxide cannot dry ammonia

2, neutral calcium chloride desiccant: anhydrous calcium chloride, the general gas can be dry, but anhydrous calcium chloride can not dry ammonia and ethanol;

3. Alkaline calcium chloride desiccant: soda lime (a mixture of CaO and NaOH, KOH), quicklime (CaO), NaOH solid, used to dry neutral or alkaline gases.

What is Calcium Chloride Calcium Chloride Desiccant? Is it poisonous?

White porous block, granular or honeycomb solid. The taste is bitter and odorless. The aqueous solution is colorless. It is mainly used as a raw material for the production of various other calcium salts in inorganic chemicals; it is also used as a calcium chloride desiccant for gases, and a dehydrating agent for the production of alcohols, esters, ethers and acrylic resins. Used as a calcium fortifier, curing agent, chelating agent, calcium chloride desiccant, etc. in the food industry. Calcium chloride calcium chloride desiccant has the effects of adsorption active static dehumidification and odor removal. It not only has fast adsorption speed, high adsorption capacity, and is non-toxic, odorless, non-contact corrosive, and has no environmental pollution, especially for human body. It is widely used in oil seal, optical medical, health food and military products.

Calcium chloride desiccant is also called sucking agent. It is used for moisture-proof and mildew-proof. It acts as a drying agent. It is a physical adsorption calcium chloride desiccant and a chemical adsorption calcium chloride desiccant according to different adsorption methods and reaction products. Physically adsorbed calcium chloride desiccant is silica gel, alumina gel, molecular sieve, activated carbon, bone charcoal, charcoal, mineral calcium chloride desiccant, or activated clay, etc. Its drying principle is to physically adsorb water molecules to itself. In the structure.

Calcium chloride calcium chloride desiccant is generally non-toxic! Ingestion may cause discomfort and should be diluted or washed with plenty of water to reduce gastrointestinal irritation.

Calcium Chloride Calcium Chloride Desiccant is one of the calcium chloride desiccant products, which has a moisture absorption rate of up to 300% of its own weight. Calcium chloride calcium chloride desiccant has the effects of adsorption active static dehumidification and odor removal. It not only has fast adsorption speed, high adsorption capacity, and is non-toxic, odorless, non-contact corrosive, and has no environmental pollution, especially for human body. It is widely used in oil seal, optical medical, health food and military products.

How to distinguish whether calcium chloride desiccant has deteriorated?

To determine whether the calcium chloride desiccant has deteriorated, we first need to determine which type of calcium chloride desiccant.

Asahi Calcium Chloride Desiccant suggests that you can judge several commonly used calcium chloride desiccants by the following methods:

1, quicklime calcium chloride desiccant - in the dry state is a white block, will release heat when placed in water. After the moisture absorption and deterioration, it becomes a powder and there is no reaction in the water.

2, silica gel calcium chloride desiccant - colorless transparent or translucent particles before use, the appearance of color may appear yellowing, darkening after use. The silica gel calcium chloride desiccant can be judged whether it has deteriorated by using a color-changing silica gel calcium chloride desiccant.

3, mineral calcium chloride desiccant - ordinary block of mineral calcium chloride desiccant, will become clay after use. However, it is generally judged whether it has deteriorated unless it is tested by measuring the water content.

Calcium chloride desiccant is used for moisture-proof and mildew-proof, and plays a role of drying. According to different adsorption methods and reaction products, it is a physical adsorption calcium chloride desiccant and a chemical adsorption calcium chloride desiccant.

Common calcium chloride desiccants for chemical adsorption include quicklime calcium chloride desiccant, magnesium chloride, calcium chloride, soda lime or phosphorus pentoxide, silicic acid, etc., which chemically absorb water molecules and change their chemical structure. Into another substance.

Physically adsorbed calcium chloride desiccant is silica gel, alumina gel, molecular sieve, activated carbon, bone charcoal, charcoal, mineral calcium chloride desiccant, or activated clay, etc. Its drying principle is to physically adsorb water molecules to itself. In the structure.

Different calcium chloride desiccant identification methods are different:

1. Quicklime calcium chloride desiccant Put the quicklime calcium chloride desiccant into the water after use. If there is no bubble generation and heat generation, it proves that the calcium chloride desiccant has expired.

2, montmorillonite / mineral calcium chloride desiccant can not be intuitively judged

3, silica gel calcium chloride desiccant color change silica gel calcium chloride desiccant will change color after use, blue or become pink, orange will turn green. Ordinary colorless and transparent silica gel calcium chloride desiccant can not be judged intuitively, can be placed into the color changing silica gel calcium chloride desiccant, by observing the color change of the color changing silica gel calcium chloride desiccant.