Aluminum Sulfate

Aluminum sulfate is a foundational coagulant in municipal water and wastewater treatment, and also serves as a sizing agent in paper manufacturing and a mordant in textile dyeing. The heading maps to a single line (2833220000), but commercial grades vary between iron-free (paper and food grade) and technical grade, which can affect admissibility documentation when destined for potable water treatment. Canada is the leading supplier to the US, followed by Colombia and Sweden, with Turkey and Mexico also among the top sources — a supply profile that reflects both proximity and established chemical trade relationships.