Question

What kind of cleaning agents are available for removing stubborn soils and stains? These are specially formulated agents that can be difficult to remove and must be thoroughly rinsed away.

Answer 1

There are several types of cleaning agents available for removing stubborn soils and stains, including acidic cleaning agents, alkaline cleaning agents, and special purpose cleaners.

Step-by-step explanation:

There are several types of cleaning agents available for removing stubborn soils and stains. These include:
1. Acidic cleaning agents: These agents contain strong mineral acids and chelants, and are used to remove inorganic deposits like scaling. They may also contain surfactants and corrosion inhibitors to enhance their effectiveness.
2. Alkaline cleaning agents: These agents contain strong bases like sodium hydroxide or potassium hydroxide. They can dissolve fats, oils, and protein-based substances. Dispersants and chelants are often added to prevent redeposition of dissolved dirt and attack rust.
3. Special purpose cleaners: These cleaners are formulated with specific chemicals to effectively remove dirt or stains from a particular surface or appliance. Examples include glass cleaners and metal cleaners.