nature
Colorless cubic crystal. Generally, industrial products are white or grayish white porous blocks, granules, or honeycomb shapes. Odorless and slightly bitter in taste. The relative density is 2.15. Melting point 782 ºC. Boiling point above 1600 ºC. Highly hygroscopic, easily deliquescent when exposed to air. Easy to dissolve in water and release a large amount of heat, its aqueous solution is slightly acidic. Dissolve in alcohol, and acetic acid. Reacting with ethanol, CaCl2 · 8NH3 and CaCI2 · 4C2Hs OH complexes are formed, respectively. The precipitate that crystallizes from an aqueous solution at room temperature is often hexahydrate, which gradually dissolves when heated to 30 ºC
In its own crystal water, it gradually loses water by heating and becomes a dihydrate at 200 ºC. When heated again to 260 ºC, it becomes white porous anhydrous calcium chloride
Anhydrous Calcium Chloride - Introduction
Anhydrous calcium chloride is a colorless crystalline solid that is highly hygroscopic at room temperature. The following is an explanation of the properties, uses, preparation methods, and safety information of anhydrous calcium chloride:
nature:
Anhydrous calcium chloride is a colorless crystal with high solubility;
It is easy to absorb moisture in the air and form hydrates, which are soluble in water and release heat to form hot solutions;
Anhydrous calcium chloride can dissolve or even solidify water at low temperatures and is often used as a dehumidifier.
Purpose:
Anhydrous calcium chloride is widely used in industrial and laboratory fields;
Used as a dehumidifier, commonly used for reducing humidity and drying in moisture absorbing environments;
Used as a snow melting agent and road de icing agent;
Serve as a dehydrating agent in the preparation of chemical reactions such as anhydrous , anhydrous ethanol, and aluminum chloride.
Manufacturing method:
Anhydrous calcium chloride can be prepared by the following two main methods:
By reacting sodium chloride with calcium hydroxide, calcium chloride is generated and dehydrated to remove water, resulting in anhydrous calcium chloride;
Prepared by concentrating and dehydrating calcium chloride solution from salt lake resources.
Security information:
Anhydrous calcium chloride is irritating and should be handled with gloves and goggles to avoid contact with skin and eyes;
When anhydrous calcium chloride comes into contact with water, it quickly absorbs moisture and releases a large amount of heat. Be careful to avoid burns;
During transportation and storage, avoid contact with water or moisture and keep it dry;
Avoid contact with substances that are prone to reactions such as acids and oxidants to prevent danger;
If ingested or inhaled by mistake, seek medical assistance immediately.
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