Definition

1. Noun:
   • An aqueous solution of sodium hypochlorite: "Eau de Javelle" is a chemical term for a liquid bleach or disinfectant solution, historically made by passing chlorine gas through a solution of sodium carbonate. It is named after the Javel neighborhood in Paris where it was first produced.

Usage Examples

• Noun:
  • For historical disinfection, they used eau de Javelle.
  • The laboratory protocol called for diluting eau de Javelle before use.

Advanced Usage

• The term is often used in historical, industrial, or specialized chemical contexts to refer to a specific type of bleach solution. In modern common usage, it is largely replaced by the generic term "bleach" or "sodium hypochlorite solution."

Variants and Related Words

• Javel water: An alternative, less common name for the same solution.
• Sodium hypochlorite solution: The modern chemical name for the active ingredient in eau de Javelle and common household bleach.

Synonyms

• Bleach (general term)
• Chlorine bleach
• Disinfectant solution

Notes on Meaning

• "Eau de Javelle" is a proper noun derived from French, literally meaning "water of Javel." It specifically denotes the chemical solution and is not used in other figurative or idiomatic senses. It is a technical/historical term.

Noun

1. an aqueous solution of sodium hypochlorite