What is the typical specific gravity of the sodium hypochlorite being used in the disinfection process?

Sodium hypochlorite is commonly used in water treatment plants for disinfection purposes. The typical specific gravity of the sodium hypochlorite solution can vary depending on its concentration and the specific formulation used. The correct answer of 1.07 represents a typical value for concentrated sodium hypochlorite solutions, which are often in the range of 10-15% available chlorine.

At this concentration, the specific gravity is higher than that of water (1.0) and reflects the density of the solution, which is affected by the solute concentration. In practice, knowing the specific gravity is important for operational purposes, such as calculating dosages and managing chemical feed systems.

When working with sodium hypochlorite solutions, operators must ensure they are aware of the correct specific gravity to ensure proper mixing and injection into the water being treated, which ultimately impacts the effectiveness of the disinfection process.