Aluminium nitrate

Aluminium nitrate (CAS 13473-90-0, EC 236-751-8) is an inorganic aluminium salt with the formula Al(NO3)3, commercially available as the nonahydrate crystalline form. It carries no E-code designation and is also referenced under the trade names aluminum nitrate and Aluminiumnitrat.

In water treatment, aluminium nitrate functions as a coagulant by releasing Al³⁺ ions that destabilise suspended particles and colloidal matter, enabling flocculation and sedimentation. In leather tanning and textile processing, it serves as a mordant and pH buffer, fixing dyes to fibres and regulating bath acidity during finishing operations.

Aluminium nitrate is supplied in solid crystalline and liquid solution grades, with purity specifications aligned to industrial and technical standards under REACH registration requirements. Standard packaging includes 25 kg bags and IBC containers for bulk procurement. Buyers should confirm grade suitability against process specifications prior to ordering.