Javelle water

Javelle water, also known as Eau de Javel, is a potent disinfectant and bleaching agent that was first produced in the 18th century in Javel, a neighborhood in Paris, France. It is a solution of sodium hypochlorite and potassium hypochlorite, and is commonly used in household cleaning and laundry applications.

History

The production of Javelle water was first initiated by Claude Louis Berthollet, a French chemist, in 1789. Berthollet discovered the bleaching properties of chlorine and introduced the use of sodium hypochlorite as a bleaching agent. The production took place in the Javel neighborhood of Paris, hence the name 'Javelle water'.

Composition

Javelle water is a solution of sodium hypochlorite (NaOCl) and potassium hypochlorite (KClO). These are both strong oxidizing agents, which give Javelle water its disinfecting and bleaching properties. The concentration of these compounds in the solution can vary, but household Javelle water typically contains 3-8% sodium hypochlorite.

Uses

Javelle water is widely used as a disinfectant and bleaching agent. In the home, it is often used for cleaning and laundry purposes. It is effective in killing bacteria, viruses, and other microorganisms, making it useful in sanitizing surfaces. In laundry, it is used to remove stains and whiten clothes.

In addition to household use, Javelle water is also used in various industries. In the textile industry, it is used to bleach fabrics. In the water treatment industry, it is used to disinfect drinking water and swimming pools.

Safety

While Javelle water is useful, it can also be hazardous. It can cause skin and eye irritation, and it can be harmful or fatal if swallowed. Therefore, it should be handled with care, and stored out of reach of children and pets.

See also

• Bleach
• Disinfectant
• Sodium hypochlorite
• Potassium hypochlorite