The types of chemicals used for boiler cleaning depend on the type of deposits present in the boiler. Some common boiler cleaning chemicals include:

• Alkaline cleaners: These are highly alkaline solutions that are typically used to remove hard water scale, rust and other types of mineral deposits. They work by dissolving the deposits and breaking them down into smaller particles that can be easily removed.

• Acid cleaners: These are acidic solutions that are typically used to remove heavy metal deposits such as iron and copper. They work by dissolving the deposits and breaking them down into smaller particles that can be easily removed.

• Chelating agents: These chemicals are used to remove hard water scale and other types of mineral deposits that are not removed by alkaline cleaners. They work by binding to the minerals in the deposits and breaking them down into smaller particles that can be easily removed.

• Oxygen scavengers: These chemicals are used to remove dissolved oxygen from the boiler water. Oxygen can cause corrosion in the boiler and can also lead to the formation of sludge.

Advantages of using Boiler cleaning chemicals:

• Improve the efficiency of the boiler by removing deposits that can impede heat transfer.
• Extend the life of the boiler by removing deposits that can cause damage to the equipment.
• Reduce fuel consumption by improving the heat transfer efficiency of the boiler.
• Improve the safety of the boiler by removing deposits that can impede the proper operation of the safety valves and other safety devices.
• Reduce the need for manual cleaning, thus saving time and labor costs.

It’s important to note that chemical cleaning of boilers can be dangerous if not performed properly, and should be done by trained and experienced professionals with proper safety measures. Also, it’s important to follow the manufacturer’s instructions and guidelines when using any chemical cleaning products.