The difference between scale inhibitors and descaling agents

Scale inhibitors and descalers are chemicals used to treat different problems in water systems, and their main difference lies in the purpose and mechanism of their application.

Purpose: The main purpose of scale inhibitors is to prevent the formation of scale, which is mainly formed by the deposition of metal ions such as calcium and magnesium. Scale inhibitors inhibit the formation of scale and maintain the cleanliness of equipment surfaces by complexing with metal ions or changing the chemical conditions in water. The main purpose of descaling agents is to remove the already formed scale, and to dissolve or remove the scale that has already deposited on the surface of the equipment through mechanisms such as dissolution, decomposition, or ion exchange.

Mechanism: Scale inhibitors mainly function through the following mechanisms:

Chelating effect: Some components in scale inhibitors can react with metal ions to form insoluble precipitates or stable complexes, thereby inhibiting the formation and deposition of scale.

Corrosion inhibition effect: The corrosion inhibitor in the scale inhibitor can reduce the corrosion of metal ions on the surface of equipment, thereby reducing the formation of scale.

Dispersion effect: The dispersant in the scale inhibitor can improve the dispersion of solid particles in water and prevent their deposition and formation of scale.

The scale remover mainly works through the following mechanisms:

Dissolving effect: The acidic components or solvents in the scale remover can dissolve or decompose the chemical substances in the scale, thereby dissolving or damaging the scale.

Ion exchange reaction: Specific components in the scale remover (such as certain organic acids) can undergo ion exchange reactions with metal ions in the scale, causing the formed scale to dissociate.

It is necessary to select appropriate scale inhibitors or descaling agents based on the specific water system situation and problems, and use them according to the product instructions. At the same time, pay attention to following relevant regulations and safe operations to ensure the safety and protection of equipment and the environment.