21 Facts About Sodium hypochlorite

Sodium hypochlorite is an inorganic chemical compound with the formula NaOCl, comprising a sodium cation and a hypochlorite anion .

Sodium hypochlorite is most often encountered as a pale greenish-yellow dilute solution referred to as liquid bleach, which is a household chemical widely used as a disinfectant or a bleaching agent.

Sodium hypochlorite is the oldest and still most important chlorine-based bleach.

Anhydrous sodium hypochlorite can be prepared but, like many hypochlorites, it is highly unstable and decomposes explosively on heating or friction.

Sodium hypochlorite can be obtained as a crystalline pentahydrate ·5O, which is not explosive and is much more stable than the anhydrous compound.

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At typical ambient temperatures, sodium hypochlorite is more stable in dilute solutions that contain solvated and ions.

Titration of hypochlorite solutions is often done by adding a measured sample to an excess amount of acidified solution of potassium iodide and then titrating the liberated iodine with a standard solution of sodium thiosulfate or phenylarsine oxide, using starch as indicator, until the blue color disappears.

Sodium hypochlorite reacts with most nitrogen compounds to form volatile monochloramine, dichloramines, and nitrogen trichloride:.

Potassium Sodium hypochlorite was first produced in 1789 by Claude Louis Berthollet in his laboratory on the Quai de Javel in Paris, France, by passing chlorine gas through a solution of potash lye.

Smith patented the chloralkali process: a method of producing sodium hypochlorite involving the electrolysis of brine to produce sodium hydroxide and chlorine gas, which then mixed to form sodium hypochlorite.

Sodium hypochlorite can be easily produced for research purposes by reacting ozone with salt.

Sodium hypochlorite hydroxide is usually added in small amounts to household bleach to slow down the decomposition of NaClO.

Sodium hypochlorite can be used for point-of-use disinfection of drinking water, taking 0.

Organic dirt exposed to Sodium hypochlorite becomes water-soluble and non-volatile, which reduces its odor and facilitates its removal.

Sodium hypochlorite has deodorizing properties, which go hand in hand with its cleaning properties.

Sodium hypochlorite solutions have been used to treat dilute cyanide waste water, such as electroplating wastes.

In batch treatment operations, sodium hypochlorite has been used to treat more concentrated cyanide wastes, such as silver cyanide plating solutions.

Sodium hypochlorite is commonly used as a biocide in industrial applications to control slime and bacteria formation in water systems used at power plants, pulp and paper mills, etc.

Sodium hypochlorite is the medicament of choice due to its efficacy against pathogenic organisms and pulp digestion in endodontic therapy.

Lesser concentrations of sodium hypochlorite are used in a similar fashion in the Pollution Abatement System to ensure that no nerve agent is released into the furnace flue gas.

However, one major concern arising from sodium hypochlorite use is that it tends to form persistent chlorinated organic compounds, including known carcinogens, that can be absorbed by organisms and enter the food chain.