Sodium hypochlorite
Description
Sodium hypochlorite is an inorganic compound widely utilized in agriculture primarily as a disinfectant and bleaching agent. As a derivative of hypochlorous acid, it serves as a potent oxidizing agent capable of neutralizing a broad range of pathogens, making it a critical tool for maintaining farm hygiene.
The mechanism of action centers on the release of active chlorine, which acts as a powerful oxidant against microbial cells. By disrupting the cell membranes and oxidizing the essential enzymatic proteins of bacteria, fungi, and viruses, sodium hypochlorite effectively eliminates localized biological threats without leaving long-term toxic residues, provided it is properly diluted and neutralized.
In agronomy, it is predominantly used for the sanitation of greenhouse structures, hydroponic systems, tools, and storage containers. Another key application is the surface sterilization of seeds to reduce seed-borne inoculum, which helps improve emergence rates and seedling health in the early stages of development.
Applying sodium hypochlorite requires high precision due to its corrosive nature and potential for phytotoxicity. When used on live plants, even low concentrations can damage leaf tissues and inhibit growth. Therefore, its use is generally restricted to non-plant surfaces or pre-planting seed treatments where the contact time can be strictly controlled.
Safety is paramount when handling this substance. Users must wear appropriate personal protective equipment to avoid contact with skin and eyes. Additionally, it is highly reactive and should not be mixed with acids or other cleaning agents to prevent the formation of hazardous chlorine gas. Proper storage in cool, dark, and well-ventilated areas is essential to maintain the chemical stability of the solution.
Status in the European Union
Not approved in the EU
- CAS number
- 7681-52-9
- Category (EU)
- BA - Bactericide
- Approved from
- 01.09.2009
- Approval until
- 31.08.2019
- ADI
- 0.15 mg/kg bw/day
- ARfD
- Not appl.
- AOEL
- 0.06 mg/kg bw/day
Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.