Calcium hypochlorite or perchlorine is a chemical used as a bleach. Calcium hypochlorite is produced by the reaction of calcium hydroxide and chlorine gas. This material has great cleaning and whitening properties and is used in water purification, industrial and household washing machines. In this article, we will introduce this material to you and examine the uses and Calcium hypochlorite production method.
What is calcium hypochlorite?
Calcium hypochlorite is a chemical and oxidizing substance with the chemical formula Ca(ClO)2. This substance exists in hydrated and anhydrous forms. Calcium hypochlorite is produced in the form of crystalline solid, odorless tablets or granules. Perchlorine has more chlorine and is more stable than sodium hypochlorite or brine water.
This substance dissolves in water and releases chlorine gas and oxygen. The cheapest and most abundant substance in the water treatment industry is calcium hypochlorite. In addition to bleaching properties, calcium hypochlorite has deodorizing, anti-fungal and anti-sludge properties. Perchlorine is a corrosive and toxic substance due to the presence of chlorine gas. Also, when it reacts with organic matter and oil, it catches fire quickly.
How is the Calcium hypochlorite production method?
As mentioned, calcium hypochlorite has bleaching and disinfecting properties, so it is also used in detergents and disinfectants. Hypochlorite is produced by calcium and sodium methods, each of which has its own uses.
In calcium production, chlorine is added directly to crushed lime and this substance is produced. Its reaction is as follows.
2Ca(OH)2 + 2Cl2 → Ca(ClO)2 + CaCl2 + 2H2O
In the sodium method, sodium hypochlorite reacts with the product of the calcium method.
CaCl2 + 2NaClO → 2NaCl + Ca(ClO)2
The use of this chemical has advantages and disadvantages. Its disadvantages include the creation of trihalomethane, which is a carcinogenic substance in water treatment. But regarding the advantages of this material, we can mention its reasonable price, long shelf life and easy access.
Excessive use of this substance causes poisoning and carries risks. Therefore, to disinfect the pool water, it should be measured and the right amount of this substance should be used.
Price and purchase of calcium hypochlorite
Andishe Mehararai Sepahan Company is an active group in the field of producing chemicals for water treatment and other industries, which can provide calcium hypochlorite, polyaluminum chloride, aluminum sulfate, etc. with the highest quality. The expert team of Amas company was selected from the best and formed a team of experts to produce and supply many chemicals.
You can contact our sales experts to get the latest perchlorine price, advice and place your order.
What are the uses of calcium hypochlorite?
calcium hypochlorite or perchlorine is very useful in water purification and disinfection. In addition, it is used in paper production, environmental disinfection, swimming pool water purification, bleach production and organic chemistry. In the rest of this article, we will learn about some uses of perchlorine.
Calcium hypochlorite in water treatment
Chlorine is an important substance used in the purification of drinking water and swimming pools. Chlorine is used in liquid, solid and gas forms.
Using this substance alone may have risks, that’s why substances such as calcium chloride and calcium carbonate are used along with it to reduce these risks and adjust the pH. This substance is used in killing viruses, removing sludge and fungi, and deodorizing.
The function of calcium hypochlorite is that it passes through the membrane of bacteria with its small molecules and deactivates their enzymes and kills germs.
Perchlorine in laundry
This substance has washing properties at low temperature, that’s why it is used instead of washing powder because it preserves the color and fibers of the fabric and saves energy. There is a fabric bleach called Vitex or Sodium Hypochlorite or Javel water which is made from calcium hypochlorite.
Na2CO3 + Ca(OCl)2 —> 2NaOCl + CaCO
Calcium hypochlorite in papermaking
Perchlorine is also used in this industry because it removes ink and dye from waste paper.
Calcium hypochlorite in fruit and vegetable disinfection
They dilute calcium hypochlorite or perchlorine with certain percentages, then use it to disinfect vegetables and fruits. When there are viral infections, they use this diluted solution to disinfect surfaces.
Other uses of perchlorine
- Prevent bacterial growth
- Disinfection of pool water
- Eliminating mold in the house, boat, etc.
- Production of chloroform in haloform process
- Neutralizer
How to use calcium hypochlorite or perchlorine?
Calcium hypochlorite or perchlorine is one of chlorinederivatives. This substance is used in water purification and disinfection. Calcium hypochlorite is alkaline and its pH is equal to 11 and 65 to 75% of it is chlorine. Perchlorine is sold in the form of powder and granules, which are directly added to the pool water for disinfection.
Important points in the use of calcium hypochlorite
For more effect of powdered calcium hypochlorite, it can be added to water over several days or weeks and added to water manually and daily. Chlorine tablets can also be used to disinfect and disinfect the pool water, but excessive use of this substance reduces the transparency and cloudiness of the water.
Important points in the use of calcium hypochlorite
Calcium hypochlorite is an unstable substance without cyanuric acid. Therefore, it has a lower resistance to the sun. If a pool with calcium hypochlorite is exposed to sunlight, it will quickly deteriorate. Using perchlorine is useful when we want to increase its amount quickly, but cyanuric acid can be added manually.
A pre-dissolving step is required to prevent decolorization. This is just an extra step, and with other chlorine products, this is not a concern.
When this substance is used in large quantities, it creates temporary turbidity in the water, which clears up by itself.
When we want to use chlorine tablets, we must use a special feeder so that the tablets are exposed to water little by little and do not dissolve quickly in water
Conclusion
Calcium hypochlorite is a powerful bleaching and disinfecting agent that is used in the purification of drinking water and swimming pool water. This material can also be used in other industries. This substance is available in powder, granule and tablets, which are mostly used in swimming pool water purification. As mentioned, perchlorine should be used in the right amount because its excessive use has risks and causes turbidity in water purification. There are two methods in the production of calcium hypochlorite, which we have briefly reviewed in this article.
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