Product Overview

Ammonium Acetate 99% For HPLC (CAS No. 631-61-8) is a water-soluble ammonium salt that provides ammonium and acetate ions in chromatographic solutions. Its ionic character enables it to influence mobile-phase pH, ionic strength, and the retention behaviour of ionisable compounds, making ammonium acetate a widely used buffer component in high-performance liquid chromatography.

The HPLC grade is intended for mobile-phase preparation, chromatographic method development, and sample-handling procedures where reagent-derived contamination and background must be carefully controlled. It is suitable for buffered aqueous and aqueous–organic mobile phases used in separations whose reproducibility and selectivity depend on consistent ionic conditions.

Typical Applications

• Preparation of buffered HPLC mobile phases
• Adjustment of mobile-phase pH and ionic strength
• Separation of suitable ionisable organic compounds
• Development and optimisation of reversed-phase HPLC methods
• Preparation of chromatographic sample solutions and diluents
• Control of retention and selectivity in buffer-dependent separations

Common Synonyms

• Ammonium Ethanoate
• Acetic Acid, Ammonium Salt
• Ammonium Aceticum

Storage Conditions

Store in a tightly closed container in a cool, dry, and clean location. Protect the material from atmospheric moisture and contamination, as ammonium acetate is hygroscopic. Minimise exposure during dispensing and reseal the container promptly to preserve its chromatographic reagent quality.