Types of desicsants
KIND OF DESICCANT
KIND OF DESICCANT
Silica gel (Silicon dioxide SiO2)
It is the most representative desicculant. Silica gel is produced from the neutralize reaction of sodium silicate and sulfuric acid and has a porous molecular structure similar to sponges. It adsorbs humidity about 50% by weight of type A silica gel.
Characteristics and characteristics
It is a physical adsorption due to capillary phenomenon, and there is no change in size or shape even if adsorbed, and there is no corrosiveness or tidal dissophysion. * Non-crystal physical adsorption desic agent. You can judge the moisture absorption situation with the blue gel for the indicator. If water is adsorbed more than a certain amount, it will turn pink. It is chemically stable and has excellent 弗 properties except for alkaline and hydrochloric acids. Various weights and packaging forms can be selected according to the purpose. There is almost no danger even if you enter the mouth.
There are two types of JIS standards: A type and B type.
Type A: Strong power to adsorb moisture at low humidity
Type B: Absorbs a large amount of moisture at high humidity and has a large adsorption capacity
Main applications
Pharmaceuticals, health foods, food (confectionery), cosmetics,
For futons, miscellaneous goods, pianos, kimonos,
For push-in, for dried flowers
Desicculants for export packaging of industrial products
It is the most representative desicculant. Silica gel is produced from the neutralize reaction of sodium silicate and sulfuric acid and has a porous molecular structure similar to sponges. It adsorbs humidity about 50% by weight of type A silica gel.
Characteristics and characteristics
It is a physical adsorption due to capillary phenomenon, and there is no change in size or shape even if adsorbed, and there is no corrosiveness or tidal dissophysion. * Non-crystal physical adsorption desic agent. You can judge the moisture absorption situation with the blue gel for the indicator. If water is adsorbed more than a certain amount, it will turn pink. It is chemically stable and has excellent 弗 properties except for alkaline and hydrochloric acids. Various weights and packaging forms can be selected according to the purpose. There is almost no danger even if you enter the mouth.
There are two types of JIS standards: A type and B type.
Type A: Strong power to adsorb moisture at low humidity
Type B: Absorbs a large amount of moisture at high humidity and has a large adsorption capacity
Main applications
Pharmaceuticals, health foods, food (confectionery), cosmetics,
For futons, miscellaneous goods, pianos, kimonos,
For push-in, for dried flowers
Desicculants for export packaging of industrial products
[Type A Silica Gel]
[Type B Silica Gel]
Recommended as a humidifier.
"Features and Applications"
For humidity control and condensation prevention in the humidity and humidity range.
Dehumidification of shoe drying, pushing and tans. Humidity humidity of musical instruments and furniture such as guitars, pianos, violins, etc. Moisture proof under the floor and under tatami. For export packing in high humidity areas!
"Features and Applications"
For humidity control and condensation prevention in the humidity and humidity range.
Dehumidification of shoe drying, pushing and tans. Humidity humidity of musical instruments and furniture such as guitars, pianos, violins, etc. Moisture proof under the floor and under tatami. For export packing in high humidity areas!
Quicklime (Calcium Oxide CaO)
Lime desicide is quicklime(Calcium oxide)is a strong alkaline substance. Water absorption rate is a fast class in high humidity environments. However, it is also effective when slow-acting is required because it is a slow water absorption rate in low humidity environments. It is characterized by strong moisture absorption and low cost, and when used in a low humidity environment, the water absorption capacity is also large and can be used for a long time. It adsorbs humidity about 30% by weight of quicklime. In addition to silica gels, once absorbed and slaked lime, it can not revive its function as a desicculant. You should also know that there is a risk of burns if swallowed or going to be lost if they get into your eyes.
Characteristics and characteristics
If mixed with water, it will generate heat. When it absorbs moisture, it gradually expands.
Lime desicide is quicklime(Calcium oxide)is a strong alkaline substance. Water absorption rate is a fast class in high humidity environments. However, it is also effective when slow-acting is required because it is a slow water absorption rate in low humidity environments. It is characterized by strong moisture absorption and low cost, and when used in a low humidity environment, the water absorption capacity is also large and can be used for a long time. It adsorbs humidity about 30% by weight of quicklime. In addition to silica gels, once absorbed and slaked lime, it can not revive its function as a desicculant. You should also know that there is a risk of burns if swallowed or going to be lost if they get into your eyes.
Characteristics and characteristics
If mixed with water, it will generate heat. When it absorbs moisture, it gradually expands.
[Quicklime(Calcium oxide CaO)]
Calcium chloride
Calcium chloride has a very strong moisture absorption capacity and physically absorbs moisture nearly 3 to 4 times its own weight. When moisture is absorbed, it liquefies and becomes jelly-like. Aling a short history of desicsants, it has an excellent moisture absorption capacity per weight and is inexpensive in terms of cost, so it has attracted attention in the recent packaging and packaging industry. However, since it cannot be used alone, it must be impregnated with porous inorganic materials such as natural zeolite and pebbles. The moisture absorption is almost the same as quicklime, the water absorption rate, the water absorption capacity is 20 °C, and the relative humidity is 60%, which is equivalent to silica gel. Contact with metal can cause rust.
Main applications
Moisture protection in larger spaces such as shoeboxes, closets, closets, etc.
Snow melting agents and dustproof agents
Calcium chloride has a very strong moisture absorption capacity and physically absorbs moisture nearly 3 to 4 times its own weight. When moisture is absorbed, it liquefies and becomes jelly-like. Aling a short history of desicsants, it has an excellent moisture absorption capacity per weight and is inexpensive in terms of cost, so it has attracted attention in the recent packaging and packaging industry. However, since it cannot be used alone, it must be impregnated with porous inorganic materials such as natural zeolite and pebbles. The moisture absorption is almost the same as quicklime, the water absorption rate, the water absorption capacity is 20 °C, and the relative humidity is 60%, which is equivalent to silica gel. Contact with metal can cause rust.
Main applications
Moisture protection in larger spaces such as shoeboxes, closets, closets, etc.
Snow melting agents and dustproof agents
Clay
Clay is made by collecting clay called montmorillonite and going through processes such as granulation, sieving, and drying. It is the least expensive of the harmless desiccants, and is most often used as a humidity control in Europe and the United States. If the relative humidity is 30% or less, the amount of water absorption is large and it will be less if it is more than this.
Characteristics and characteristics
It is a physical adsorption due to capillary phenomenon, and there is no change in size or shape even if adsorbed. There is no corrosiveness, tidal solution, etc.
※ It is an amorphous physical adsorption desicto.
At low humidity, it has better adsorption capacity than other desicsors such as silica gels. Economically superior to other desics. It is chemically stable and has excellent 弗 properties except for alkaline and hydrochloric acids. Various weights and packaging forms can be selected according to the purpose. It also adsorbs odory ingredients.
Main applications
Desicculants for export packaging
Clay is made by collecting clay called montmorillonite and going through processes such as granulation, sieving, and drying. It is the least expensive of the harmless desiccants, and is most often used as a humidity control in Europe and the United States. If the relative humidity is 30% or less, the amount of water absorption is large and it will be less if it is more than this.
Characteristics and characteristics
It is a physical adsorption due to capillary phenomenon, and there is no change in size or shape even if adsorbed. There is no corrosiveness, tidal solution, etc.
※ It is an amorphous physical adsorption desicto.
At low humidity, it has better adsorption capacity than other desicsors such as silica gels. Economically superior to other desics. It is chemically stable and has excellent 弗 properties except for alkaline and hydrochloric acids. Various weights and packaging forms can be selected according to the purpose. It also adsorbs odory ingredients.
Main applications
Desicculants for export packaging
[Clay]
Synthetic zeolite
Synthetic zeolite has uniform pores and cavities in a mesh shape, also known as molecular sieve.(Molecular Sieves)It is a harmless substance also called. It has the strongest adsorption power, but it is also expensive in price, so it is used especially when moisture adsorption is required in low humidity areas.
Characteristics and characteristics
Synthetic zeolite has a large moisture absorption capacity even at low humidity compared to other desicsants. The moisture absorption rate is also very fast. Odoration due to component decomposition of pharmaceutical products generated due to a small amount of residual moisture can be prevented. Chemically stable, there is no change in appearance shape even after adsorption. It is not corrosive or tidal. It contains very few heavy metals and does not use additives that are harmful to the human body.
Main applications
Preservation of metals, pharmaceuticals, etc.
Maintenance of drying conditions in glove boxes and desiccators
Synthetic zeolite has uniform pores and cavities in a mesh shape, also known as molecular sieve.(Molecular Sieves)It is a harmless substance also called. It has the strongest adsorption power, but it is also expensive in price, so it is used especially when moisture adsorption is required in low humidity areas.
Characteristics and characteristics
Synthetic zeolite has a large moisture absorption capacity even at low humidity compared to other desicsants. The moisture absorption rate is also very fast. Odoration due to component decomposition of pharmaceutical products generated due to a small amount of residual moisture can be prevented. Chemically stable, there is no change in appearance shape even after adsorption. It is not corrosive or tidal. It contains very few heavy metals and does not use additives that are harmful to the human body.
Main applications
Preservation of metals, pharmaceuticals, etc.
Maintenance of drying conditions in glove boxes and desiccators
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