Calcium chloride is divided into calcium chloride dihydrate and anhydrous calcium chloride according to the crystal water contained. Products are available in powder, flake and granular form. According to the grade is divided into industrial grade calcium chloride and food grade calcium chloride. Calcium chloride dihydrate is a white flake or gray chemical, and the most common use of calcium chloride dihydrate on the market is as a snow melting agent. Calcium chloride dihydrate is dried and dehydrated at 200 ~ 300℃, and anhydrous calcium chloride products can be prepared, which are white and hard fragments or particles at room temperature. It is commonly used in salt water used in refrigeration equipment, road deicing agents and desiccant.
① Industrial grade calcium chloride use
1. Calcium chloride has the characteristics of heat and low freezing point in contact with water, and is used as snow and ice removal for roads, highways, parking lots and docks.
2. calcium chloride has the function of strong water absorption, because it is neutral, can be used for the drying of most common gases, such as nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases. But can not dry ammonia and alcohol, easy to react.
3. calcium chloride in calcined cement as an additive, can make the calcination temperature of cement clinker reduced by about 40 degrees, improve the production capacity of the kiln.
4. calcium chloride aqueous solution is an important refrigerant for refrigerators and ice making. Reduce the freezing point of the solution, so that the freezing point of water is below zero, and the freezing point of calcium chloride solution is -20-30℃.
5. can accelerate the hardening of concrete and increase the cold resistance of building mortar, is an excellent building antifreeze.
6. the production of alcohol, ester, ether and acrylic resin used as dehydrating agent.
7. used as port fogging agent and road dust collector, cotton fabric fire retardant flame retardant.
8. used as aluminum magnesium metallurgy protective agent, refining agent.
9. is the production of color lake pigment precipitating agent.
10. for waste paper processing deinking.
11. Used as an analytical reagent.
12. used as lubricating oil additive.
13. is the production of calcium salt raw materials.
14. the construction industry can be used as an adhesive and wood preservative description: The formation of glue in the building.
15. in chloride, caustic soda, inorganic fertilizer production used to remove SO42-.
16. agriculture can be used as a spraying agent for wheat prevention of dry hot air disease, salt soil amendment, etc.
17. calcium chloride in the adsorption of dust, reduce the amount of dust has a significant effect.
18. In oilfield drilling, it can stabilize mud layers at different depths. Lubricate the drilling to ensure the smooth progress of mining work. Calcium chloride with high purity is used to make hole plug, which plays a fixed role in oil well.
19. the addition of calcium chloride in swimming pool water can make the pool water become a pH buffer solution and increase the hardness of the pool water, which can reduce the erosion of the pool wall concrete.
20. the treatment of fluorine-containing wastewater, wastewater to remove phosphoric acid, mercury, lead and copper heavy metals, soluble in water after the chloride ion has the effect of disinfection.
21. the addition of calcium chloride to the water of Marine aquariums can increase the content of bioavailable calcium in the water, and the molluscs and coelenterates cultured in the aquarium will use it to form calcium carbonate shells.
22. do compound fertilizer with calcium chloride dihydrate powder, the role of compound fertilizer production is granulation, using the viscosity of calcium chloride to achieve granulation.
② Food grade calcium chloride use
1. for apples, bananas and other fruit preservation preservative.
2. for the improvement of wheat flour complex protein and calcium fortifier in food.
3. as curing agent, can be used for canned vegetables. It also solidifies soy curds to form tofu, and can be used as an ingredient in molecular gastronomy by reacting with sodium alginate to form caviar-like pellets on the surface of vegetables and fruit juices.
4. for beer brewing, in the lack of minerals in the beer brewing liquid will be added to food calcium chloride, because calcium ion is one of the most influential minerals in the beer brewing process, it will affect the acidity of the wort and yeast play an impact. And food calcium chloride can give the brewed beer sweetness.
5. as an electrolyte added to sports drinks or some soft drinks including bottled water. Because the food calcium chloride itself has a very strong salty taste, it can replace salt for the production of pickled cucumbers without increasing the effect of sodium content of food. Food calcium chloride has a cryogenic property and is used to delay the freezing of caramel in chocolate bars filled with caramel.
Post time: May-30-2024
