Main classification of Aluminium sulfate



Aluminum sulfate (Al2(SO4)3) can be classified based on its iron (Fe) content into categories of "low Fe" and "Fe-free":

1. Low Fe Aluminum Sulfate:

This classification typically refers to aluminum sulfate products that contain a relatively low concentration of iron impurities. The exact threshold for what constitutes "low Fe" can vary depending on industry standards and specific applications.

Low Fe aluminum sulfate is preferred in applications where iron contamination could negatively impact the final product or process, such as in water treatment where iron can cause discoloration or unwanted reactions.

2. Fe-Free Aluminum Sulfate:

Fe-free aluminum sulfate refers to products that are manufactured or processed to ensure that they contain minimal to no iron impurities.

Achieving Fe-free status often involves rigorous purification methods or sourcing raw materials that are naturally low in iron content.

Fe-free aluminum sulfate is crucial in industries where any trace of iron could compromise product quality, such as in specialty chemicals, pharmaceuticals, or sensitive industrial processes.

These classifications are important for ensuring that aluminum sulfate meets specific purity requirements for different applications. The choice between low Fe and Fe-free variants depends on the sensitivity of the application to iron impurities and the desired quality standards.