Can sulfuric acid be used to clean the scale in the boiler?

Sulfuric acid is a highly corrosive chemical. If the concentration of sulfuric acid is very high, it will cause great harm to people's bodies. Boiler is something that people in the north are no strangers to. It is often used to boil hot water for heating, which is very helpful to people. We all know that if the boiler is used for a long time, scale will be generated in the boiler, which will affect the service life of the boiler. So do you know if you can use sulfuric acid to clean the scale in the boiler? Why?

It is not possible to use sulfuric acid to clean scale in the boiler. The component of scale is mostly calcium carbonate, which easily reacts with sulfuric acid to form calcium sulfate which is insoluble in water and may accumulate on the inner wall, thus failing to achieve the descaling effect.

Boiler cleaning method 1

Use vinegar to remove scale. First, pour out the water in the kettle, then pour the vinegar into the kettle, preferably to completely submerge the scale, and then soak for about twenty minutes.

Boiler cleaning method 2

For boilers in larger canteens or restaurants, they are cleaned relatively seldomly, so the scale is relatively thick. For this type of boiler cleaning, we must use a specific descaling agent. Pour the descaling agent into the boiler according to the thickness of the scale, then fill it with water and soak it for about two hours.

Boiler cleaning method three

Whether it is a domestic kettle or a public boiler, after the first step of descaling, the next step is cleaning. Before Chinese Valentine's Day, be sure to check whether the scale has been removed, then pour out the descaling agent inside, and then wash it repeatedly with clean water several times until there is no odor.

Boiler cleaning method 4

For household kettles, the above two steps may be sufficient, but for public boilers, it is far from enough. When cleaning the boiler, you should also add stripping agents and slow-release agents to circulate and flush for about twenty minutes. This is an anti-corrosion treatment for the boiler.

Boiler cleaning method five

After the boiler's anti-corrosion treatment, a passivation treatment should also be done. Add a passivation coating agent into the boiler, and then inject water to repeatedly flush the inner wall of the filter. This can effectively slow down the time and speed of scale re-generation and play a protective role.

Can we use sulfuric acid to clean the scale in the boiler? Looking at the introduction above, we have learned that sulfuric acid and scale will form calcium sulfate, which is very unwise for removing scale. Therefore, do not use sulfuric acid to clean the scale in the boiler. Moreover, sulfuric acid is particularly dangerous and has great harm to people. Therefore, you can use the method introduced above to clean the scale.