The use of calcium chloride

Calcium chloride is a chemical consisting of the elements chlorine and calcium. It is a typical ionic halide, white, hard fragments or particles at room temperature. Because calcium chloride easily absorbs moisture in the air and delixes, anhydrous calcium chloride must be stored in sealed containers. So what are the uses of calcium chloride?

1, snow melting agent: used for roads, highways, parking lots, docks snow and deicing.

2, desiccant: used for nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide and other gases drying (note: can not dry ammonia and alcohol, easy to react)

3, dehydrating agent: the production of alcohol, ester, ether and acrylic resin used as dehydrating agent.

4, refrigerant: calcium chloride aqueous solution is an important refrigerant for chillers and ice making (Note: reduce the freezing point of the solution, so that the freezing point of water is below zero, the freezing point of calcium chloride solution is -20-30℃)

5, antifreeze: can accelerate the hardening of concrete and increase the cold resistance of building mortar, is an excellent building antifreeze.

6, used as port fogging agent and road dust collector, cotton fabric fire retardant.

7, used as aluminum magnesium metallurgy protective agent, refining agent.

8, is the production of color lake pigment precipitating agent.

9, used for deinking waste paper processing.

10, is the production of calcium salt raw materials.

11, the construction industry can be used as an adhesive and wood preservative description: The formation of glue in the building.

12, in chloride, caustic soda, inorganic fertilizer production used to remove SO42-.

13. In agriculture, it can be used as a spraying agent for wheat prevention of dry hot air disease, a preservative for apples and other fruits, and a salt soil amendment agent.

14, calcium chloride in adsorption dust, reduce the amount of dust has a significant effect:

1. Improve the level of safety production: the use in the mining process can reduce the dust content in the environment and reduce the occurrence of explosive accidents during mining. Calcium chloride is mainly used to produce a surface-active solution that is sprayed on tunnels and in mines to control the amount of dust and reduce the risk of mine operations. In addition, calcium chloride solution can also be sprayed on the open coal seam, so that the coal seam anti-freezing)

2. Purifying the environment to reduce pollution: calcium chloride has a good adsorption effect on the dust on the road, which can improve the cleanliness of the road and the visibility of the air. (Calcium chloride has a strong ability to absorb water because it is easy to dissolve in water and especially easy to deliquate. It can spread anhydrous calcium chloride or calcium chloride dihydrate to the ground, which can quickly adsorb water in the air into its crystal water, and crystal water can adsorb dust in the air into large particles settling, so calcium chloride can play the role of dust removal)

15, the role of oilfield drilling:

1. Stable mud layer: It can stabilize the mud layer at different depths.

2. lubricating drilling: lubricate the drilling to ensure the smooth progress of mining work.

3. Making hole plug: The selection of high purity calcium chloride to make hole plug, play a fixed role in the oil well.

16, 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.

17, 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.

18, Adding calcium chloride to the water of Marine aquariums can increase the content of bioavailable calcium in the water, and the mollusks and coelenterates cultured in the aquarium will use it to form calcium carbonate shells.

19, do compound fertilizer with dihydrate, calcium chloride in the role of compound fertilizer production is granulation, using the viscosity of calcium chloride to achieve granulation, before the use of clay, clay is expensive, and the color of the compound fertilizer is black, so instead of calcium chloride. The amount is determined according to the land situation, some places add 20 jin/ton, and some 30 jin/ton. Use less in winter and more in spring and summer.

20, calcium chloride 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. Added as an electrolyte to sports drinks or some soft drinks including bottled water. Because 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. Calcium chloride’s freezing point lowering properties are used in caramel-filled chocolate bars to delay the freezing of caramel.