Swimming pool illustration

What You Need to Know About Calcium Hypochlorite

Swimming is something that many people enjoy. A swimming pool is one of the places to visit when swimming. When we swim, the water from the pool sometimes comes into our bodies through the nose or mouth. The taste and smell of pool water tend to have a distinctive aroma when the pool has just been cleaned for a while.

Why does this distinctive aroma exist? What is added to the pool during cleaning? Let us get to know more about calcium hypochlorite.

Getting to know calcium hypochlorite: Distinctive aroma in a swimming pool

During the cleaning process of the swimming pool, a chemical called calcium hypochlorite is added. Calcium hypochlorite is marketed as chlorine powder or bleach powder. This chemical is often used for water treatment and as a bleaching agent in combination with lime and calcium chloride.

The distinctive aroma produced in the swimming pool is due to the addition of calcium hypochlorite into the water. This process is called pool shock, which adds chlorine or non-chlorine chemical to the water. The main objective of the pool shock is to raise the free chlorine, hence water contaminants such as bacteria and algae are removed.

As for the aroma, calcium hypochlorite has the intrinsic property of odor. It has a sweetish and chlorine-like odor. This is the reason why the swimming pool often has this kind of aroma after the pool shock process.

Besides a swimming pool, calcium hypochlorite is used in kitchens to disinfect surfaces and equipment. Other applications are also common such as toilet cleaners, household disinfectant sprays, herbicides, and laundry detergents.

The advantages of calcium hypochlorite

Calcium hypochlorite is known for the chemical formula of Ca(OCl)2. This compound is fairly stable. Calcium hypochlorite is used in disinfection homes similarly to sodium hypochlorite and contains more chlorine than sodium hypochlorite (liquid bleach).

It is efficient over time when stored in dry storage due to its stability in the ambient temperature and pressure. Commercial grades of calcium hypochlorite typically contain about 70% free chlorine. Thus, calcium hypochlorite is suitable to be used both in drinking water and wastewater applications.

The disadvantages of calcium hypochlorite

While stable calcium hypochlorite is more solid and safer to handle than its liquid counterpart, it is corrosive and hygroscopic. Besides that, calcium hypochlorite can slowly react with moisture in the air to form chlorine gasoline if not stored correctly.

As a result, calcium hypochlorite waste should be completely sealed in a suitable vessel or emptied. As for the case with chlorine fuel oil and sodium hypochlorite, wastewater application of calcium hypochlorite typically require dechlorination following disinfection. This is conducted to minimize chlorine discharges to receiving waters.

How should we use it properly?

To the best of our knowledge, calcium hypochlorite can be properly used in several industries. For example, water treatment and textile industries will need calcium hypochlorite as a bleaching or scouring agent. As mentioned in the calcium hypochlorite advantages previously, it is preferable to be used in drinking water and wastewater applications.

As for the textile industry, it absolutely has a wastewater treatment system that will need to be conducted. The wastewater treatment system in the textile industry is to reduce the waste from textile processing. Therefore, the environmental impact of wastewater deployment in the textile industry will be lesser.

Tradeasia International as a global calcium hypochlorite supplier provides calcium hypochlorite in bulk and various grades of calcium hypochlorite for market and industry solutions. Get calcium hypochlorite and other chemicals suitable for textile and wastewater treatment applications in bulk with different grades and packaging.

By Muhammad Rafi, Student Academy in Tradasia Academy Batch 2, Tradeasia International

Proofread and reviewed by Muhammad Derry Luthfi Yudhi, Content Support, Tradeasia International

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