Name | DESICCANT |
Synonyms | DESICCANT DESICCANTS MOISTURE-GONE(TM) |
Use | Uses desiccant is commonly used in moisture-proof packaging, such as cameras and photosensitive materials, precision instruments/electrical appliances, food, medicines, shoes, clothing, leather, weapons, telecommunications equipment, etc; can also be used for air dewetting, such as the family cabinet, cabinet, floor, musical instrument, etc.; Can be used in air drying, such as warehouse, pharmaceutical factory, precision machinery, electronic equipment manufacturing factory, compressed air, instrument air drying. In addition, active mineral desiccant is widely used in products that cannot use oil seals, gas phase storage, such as: optical instruments, electronic products, medical care, dry air storage for food packaging and military and civilian products. 1. The choice of desiccant in daily life. |
introduction
The desiccant can absorb an inordinate amount of wet water substances in wet substances. There are usually two types:(1) chemical desiccants, which are accompanied by chemical reactions when absorbing water, such as anhydrous calcium chloride, concentrated sulfuric acid, soda lime, etc. (2) Physical desiccant absorbs moisture without chemical reaction, such as silica gel absorbs moisture in the air. The drying ability of different desiccants is different. The determination method is: first, the air saturated with water vapor passes through the quantitative desiccant at a speed of 1 ~ 3L/h at 25 ℃, and then the residual moisture content in the dried air is determined. The less the remaining moisture, the better the water absorption of the desiccant.
classification
Desiccant is a water scavenger that absorbs moisture. It can physically adsorb water molecules in its own structure, or chemically absorb water molecules and change its own chemical structure to generate another substance. Common desiccants can be divided into three categories according to their different properties: acidic desiccants, such as P2O5, concentrated sulfuric acid, etc. Alkaline desiccants, such as quicklime, NaOH solid, soda lime, etc.; Neutral desiccants, such as anhydrous CaCl2, anhydrous CuSO4, Mg(ClO4)2, silica gel, molecular sieve, etc.
Introduction | desiccants can absorb non-quantitative wet stored water from the moisture content. There are usually two types:(1) Chemical desiccants, which absorb water with chemical reactions, such as anhydrous calcium chloride, concentrated sulfuric acid, soda lime and so on. (2) physical desiccant, absorption of moisture without chemical reaction, such as silica gel absorption of moisture in the air. Different drying agent drying ability is different, the determination method is: the first water vapor saturated air at 25 deg C at a rate of 1~3L/h through the quantitative desiccant, the residual moisture content in the dried air was then measured, and the lower the residual moisture content, the better the water absorption of the desiccant. |
classification | desiccant is a moisture-absorbing dehydrating agent, which can physically adsorb water molecules in its own structure, or by chemically absorbing water molecules and changing their chemical structure to produce another substance. Common desiccants can be divided into three categories according to their different properties: acidic desiccants, such as P2O5, concentrated sulfuric acid, etc.; Alkaline desiccants, such as quicklime, NaOH solid, soda lime, etc.; Neutral desiccants, such as anhydrous CaCl2, anhydrous CuSO4, Mg(ClO4)2, silica gel, molecular sieve, etc. |
Use | desiccant is commonly used in moisture-proof packaging, such as cameras and photosensitive materials, precision instruments/electrical appliances, food, medicine, shoes, clothes, leather, weapons, telecommunications equipment, etc.; Can also be used for air dewetting, such as the family cabinet, cabinet, floor, musical instruments, etc.; Can be used in air drying, such as warehouse, pharmaceutical Factory, precision machinery, electronic equipment manufacturing factory, compressed air, instrument air drying. In addition, active mineral desiccant is widely used in products that cannot use oil seals, gas phase storage, such as: optical instruments, electronic products, medical care, dry air storage for food packaging and military and civilian products. 1. The choice of desiccant in daily life. |