Basic Facts You need to Know About Sodium Dichloroisocyanurate

What is sodium dichloroisocyanurate

This is a chemical disinfectant with a variety of industrial and commercial applications. It has also been used in many natural disasters for water treatment, but it’s most commonly found in swimming pools, both residential and commercial.

It works by reacting with organic material found in the water to create a gas that neutralizes most microorganisms responsible for causing diseases. The gas created during this process is acidified, so it often corrodes metal equipment such as pool pumps and filtration tanks so they need more frequent replacement than would be required otherwise.


Since chlorine binds less strongly to naturally filtered natural bather waste than chemically treated waste such, there is a benefit to the use of chlorine-based chemicals for large commercial pools. Chlorine has become very common due to its low cost and high effectiveness so it’s not uncommon to see sodium dichloroisocyanurate used in conjunction with other disinfectants such as trichloro-s-triazinetrione. It has been used over the years and have been a part of the “staples” when it comes to finding a reliable water treatment and stabilizer for swimming pools.

Sodium Dichloroisocyanurate 3.3g tablet

It’s stable as a dry powder and dissolves well in water, but it’s critical to keep it dry because it can react with moisture to cause a release of toxic chlorine gas. Always bear in mind that this is not very soluble in cold water so warm or hot water must be used when preparing this chemical for use.


The compound has two distinct advantages that contribute to its popularity. First, it is effective against a broad range of organisms including bacteria and viruses. This is why it’s primarily used in both residential and industrial-sized pools. Secondly, NaDCC disinfectant is a strong oxidant, so it can reduce the number of chemicals needed by up to 80% with just 5 ppm of chlorine. In most cases, chlorine’s effectiveness as a disinfectant is not affected by pH or water temperature.

The long-term storage stability of this chemical compound is questionable, especially in direct sunlight. It can be stored at room temperature for a few months before it begins to lose potency, but it’s best to store this chemical in a dark area that has a stable ambient temperature for longer periods of time. It’s also an irritant and a skin, eye, and lung-sensitizer so it should always be handled with caution.

Applications of Sodium Dichloroisocyanurate

It’s also advised that the user add a stabilizer such as cyanuric acid to the chemical when it’s being used in swimming pools so that the compound won’t lose its effectiveness over time. The industry standard for use is 5 – 15 ppm of chlorine, but some manufacturers will sell a more concentrated variant of this compound.

Sodium Dichloroisocyanurate is used to treat drinking water during natural disasters or emergency situations, but it’s less common to find the chemical being used in small residential applications. The cost-effectiveness of this compound is low for most domestic water treatment needs since the chemicals are typically sold at higher concentrations than required for smaller volume applications.

The use of chlorine in swimming pools is common because it’s effective at eliminating the bacteria that can cause illness. However, if you don’t take safety precautions when managing this chemical, it has the potential to be dangerous and even lethal. To avoid accidental release of toxic chlorine gas or corrosion due to contact with moisture, always keep sodium dichloroisocyanurate dry and store it in a dark area that maintains stable ambient temperatures for longer periods of time. If you’re using an industrial-sized pool instead of a residential one, always follow the industry-standard guidelines and purchase this chemical from a reliable chemical supplier(https:/