Sodium and calcium hypochlorite can cause irritation of the eyes, skin, respiratory and gastrointestinal tract. Exposure to high levels can result in severe corrosive damage to the eyes, skin, respiratory and gastrointestinal tissues and can be fatal.
Disadvantages of sodium hypochlorite are: Sodium hypochlorite is a risky and destructive substance. While working with sodium hypochlorite, security measures must be taken to safeguard labourers and the environment. Sodium hypochlorite ought not to interact with air since that will make it break down.
* Calcium Hypochlorite can affect you when breathed in. * Contact can severely irritate and burn the eyes and skin. * Breathing Calcium Hypochlorite can irritate the nose and throat. * Breathing Calcium Hypochlorite can irritate the lungs causing coughing and/or shortness of breath.
Calcium Hypochlorite; Disadvantages
Although solid Ca(OCl)2 is more stable and safer to handle than its liquid counterpart NaOCl, it is corrosive and hygroscopic (i.e., readily absorbs moisture), reacting slowly with moisture in the air to form chlorine gas if not stored in air-tight containers.
As with any oxidizer, calcium hypochlorite can oxidize metals, which may produce contaminants that can stain pool and spa surfaces.
High calcium hardness—creates a flaky buildup in your pool, clogging the filters and clouding the water; High calcium hypochlorite—overuse of granular calcium hypochlorite shock treatment can also cause cloudy pool water.
Calcium Hypochlorite is only a few bucks and you can find it at swimming pool supply stores such as Deep Blue Pools and Spas . This is also referred to as pool shock. Keep in mind that when the granular calcium hypochlorite is made into the liquid chlorine solution it does have a shelf life of about 24 months.
Sodium hypochlorite is best for pools with high calcium hardness and has around 10% to 12% Chlorine. Sodium hypochlorite is very effective fighting against microorganisms and removing stains. Calcium hypochlorite is the most popular type with around 65% Chlorine.
Calcium hypochlorite (cal-hypo) is a calcium-based granular chlorinated pool shock that can be used as a maintenance or treatment product.
Sodium Hypochlorite (NaClO)
Known more commonly as liquid bleach, this light yellow liquid is a chlorine derivative that is much safer than chlorine gas. Because it is produced and stored as a liquid, the potential danger of having high-pressure chlorine gas on site is eliminated.
Just like chlorine, when sodium hypochlorite is released in water, it produces hypochlorous acid. This acid then reacts with pathogens in the water, like bacteria, viruses and protozoa, and deactivates them, preventing them from being able to reproduce or pose a risk to human health.
every 24 hours.
Bleach rapidly degrades in the presence of light and when mixed with water.
Don't mix bleach with ammonia, acids, or other cleaners.
Mixing bleach with common cleaning products can cause serious injuries. Be sure to always read the product label before using a cleaning product.
Sodium hypochlorite solutions are clear, greenish to yellow liquids with an odor of chlorine. Calcium hypochlorite is a white solid that readily decomposes in water releasing oxygen and chlorine. It also has a strong chlorine odor. Neither compound occur naturally in the environment.
Environmental Effects
Sodium hypochlorite is very toxic to aquatic organisms. However, as the substance is extremely reactive, any sodium hypochlorite which is poured into the drain from household use will react with organic matter and will be removed before reaching the environment.
Swimming-pool liquid sodium hypochlorite is available in strengths ranging from eight to as high as 12.5 percent. This is great for the swimming pool because liquid is ready to disinfect immediately without any need to dissolve or break down. That means that bacteria and algae are quickly disrupted.
Sodium hypochlorite is as effective as chlorine gas for disinfection. Sodium hypochlorite produces residual disinfectant. Sodium hypochlorite is a dangerous and corrosive substance. While working with sodium hypochlorite, safety measures have to be taken to protect workers and the environment.
In the swimming pool industry, one of the most popularly chosen forms for sanitizing and superchlorinating water is sodium hypochlorite. Commonly known as "liquid chlorine" or bleach, sodium hypochlorite is widely used in both commercial and residential swimming pools.
Answer: Generally you will want to wait at least 4 hours, but ideal is waiting for one complete turnover of the water (the time it takes all the water to go through the filter).
Calcium hypochlorite decomposes in water to release chlorine and sodium hypochlorite solutions and can release chlorine gas if mixed with other cleaning agents.
You can use granular calcium hypochlorite to disinfect water. Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water.
You can raise the pH and alkalinity by adding alkaline products like sodium bicarbonate (baking soda), or lower it with chemical additives like muriatic acid or sodium bisulfate. The calcium hardness should fall between 180 and 220 ppm. To increase calcium hardness, add calcium chloride to the pool water.
Cal hypo contains approximately 65 percent chlorine as compared to the 12 percent that is typical in liquid bleach. Bleach breaks down over time, losing its strength and efficacy as well as adding to the total dissolved solids in the pool.
Calcium Hypochlorite: Also common known as “cal hypo,” this shock is the most powerful and fastest acting shock available. Both an oxidizer and sanitizer, cal hypo is quick dissolving and is the most frequently used in the pool industry. It will slightly raise your pH, so make sure you adjust pH while using it.