Aluminum nitrate nonahydrate

Aluminum nitrate nonahydrate (CAS 7784-27-2) is a water-soluble aluminum salt supplied in crystalline hydrated form. It functions as a coagulant, corrosion inhibitor, and pH buffer across multiple industrial processes.

In water treatment, it acts as a coagulant and flocculant, destabilizing suspended solids and colloidal matter to clarify process and wastewater streams. This ensures efficient removal of impurities in large-scale systems.

Textile and leather processors use it as a mordant and tanning auxiliary, improving dye fixation and surface treatment uniformity on fiber and hide substrates. This chemical is essential for achieving consistent color results.

In pulp and paper manufacturing, it supports retention aid systems and controls pH during wet-end chemistry to improve sheet formation. This helps manufacturers maintain high quality and structural integrity in paper products.

Personal care formulators incorporate it at controlled concentrations for its astringent and antiperspirant buffering properties in topical preparations. It is valued for its stability and performance in cosmetic formulations.

The product is supplied as white crystalline granules or lumps, with purity typically ranging from technical to reagent grade. Standard commercial specifications include technical grade for industrial processing and higher-purity grades.

These higher-purity grades are aligned with laboratory and analytical requirements for precise testing. Packaging is available in bulk bags and smaller drum quantities to suit both large-scale industrial buyers and specialty formulators.