Sodium hypochlorite, aqueous solution, grade S, technical

Sodium hypochlorite (NaOCl) is the sodium salt of hypochlorous acid. Dissolved in water, it has a yellow-green, translucent color with a high pH. It is characterized by a strong oxidizing effect. It is obtained by saturating sodium hydroxide solution and alkali metals with chlorine.  

One of the basic applications of sodium hypochlorite is the treatment and improvement of the quality of drinking and process water. According to literature data, sodium hypochlorite has disinfecting and bleaching properties. Thanks to these properties, it is widely used in water treatment in waterworks and in companies dealing with the supply of drinking water or having technological contact with food.

Sodium hypochlorite is commonly used to treat water in swimming pools and water parks . It is used both in small household tanks with a capacity of several cubic meters, as well as in hotel and SPA installations, as well as sports swimming pools and amusement parks that use hundreds of thousands of cubic meters of water daily. The recommended concentration to effectively improve the quality of swimming pool water is 200-250 ml of 15% sodium hypochlorite solution for every 10,000 liters of water - at a water pH of 7.0 and a temperature in the range of 18-22 degrees Celsius. Also used as a component in water treatment plants based on chlorine dioxide.

Due to its chemical properties , sodium hypochlorite is commonly used in poultry and other livestock farming . In the form of a 3% aqueous solution, sodium hypochlorite is an ideal agent for disinfecting breeding surfaces of poultry, pigs, cattle, horses and cattle. This agent can be used on the surface as well as in the form of mist or spray. Efficiency of the agent is estimated at about 300 l of working liquid per breeding facility, eg a chicken coop with an area of ​​1750 to 2000 m ² .

Sodium hypochlorite, due to its biocidal properties confirmed in the literature, is commonly used in Western European countries as an agent in the cultivation of fruit trees and vineyards . Spring preventive spraying of fruit trees in the leafless state with a 3% aqueous solution of sodium hypochlorite - with a yield of approx. 500 l per hectare of spray liquid - is a recommended, common and planned treatment in orchards and vineyards in the Netherlands, France and Germany. In publications of such authorities as Peter van Arkel, autumn spraying with a three percent water solution of sodium hypochlorite - with a capacity of approx. 500 l of working liquid per hectare - is mentioned as very effective or highly effective in preventing and combating fruit tree cancer, especially Neonectria ditissima - known also known as Nectri galligena and Neonectria.

Sodium hypochlorite as a highly reactive oxidant with bleaching and cleaning properties is widely used in the wood industry as a preventive measure and against blue stain of wood. Spraying or bathing in a 6-8% aqueous solution of sodium hypochlorite is commonly used to prevent blue stain or remove discoloration.

Attention! Sodium hypochlorite is a dangerous substance, use appropriate personal protective equipment when using it.

• dangerous substance
• is certified by the Polish National Institute of Hygiene
• precautions should be taken
• the product is not available for private use
• offer addressed only to companies

Hazard statements:

H290 May be corrosive to metals.
H314 Causes severe skin burns and eye damage.
H410 Very toxic to aquatic life with long lasting effects.

Precautionary statements:

P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water [or shower].
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Supplementary label elements:

EUH031: Contact with acids liberates toxic gas.