What is another name for Sodium Hydroxide?

Sodium Hydroxide is commonly known as Caustic Soda. This name comes from its caustic properties, meaning it can cause severe burns and damage to body tissues upon contact. It is a strong alkaline compound used in various applications, including water treatment, where it helps adjust pH levels. In chemical reactions, Sodium Hydroxide acts as a base and is important for neutralizing acids.

The other options, while related to water treatment and chemistry, refer to different substances. Lime, for example, primarily refers to Calcium Oxide or Calcium Hydroxide and is used to soften water and remove impurities. Soda Ash is another name for Sodium Carbonate, which serves different purposes in water treatment, such as softening water and improving alkalinity. Alum refers to a type of chemical that helps clarify drinking water and is commonly used in coagulation processes. Each of these substances plays a role in treatment processes, but only Caustic Soda is specifically synonymous with Sodium Hydroxide.