Potassium Aspartate
Other Names: Potassium L-aspartate (JAN), Aspara K (TN), D04948

CAS Number: 1115-63-5
Sum Formula: C₄H₆KNO₄
Molar Mass: 171.20 g/mol
Appearance: White to off-white crystalline powder

Potassium aspartate is the potassium salt of L-aspartic acid, a naturally occurring amino acid. It is a stable, water-soluble compound commonly used in technical, chemical, and material science applications requiring organic-compatible potassium sources.

Chemical and Physical Properties
Density: ~1.8 g/cm³ (estimated)
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Solubility in Water: Freely soluble
Solubility in Other Solvents: Slightly soluble in alcohol; practically insoluble in nonpolar solvents
Odor: Odorless

Applications
Organic Synthesis: Used as an intermediate in the synthesis of amino acid derivatives and specialty ligands.
Material Science: Studied for incorporation into biocompatible materials and ionic functional systems.
Coordination Chemistry: Acts as a ligand or complexing agent for metal ions in chemical research.
Buffer Systems: Used in the preparation of technical buffering solutions requiring potassium ions.
Analytical Chemistry: Employed in ion-exchange chromatography and metal chelation studies.

Safety

Handling and Storage
Storage Conditions: Store in a tightly sealed container in a cool, dry, and well-ventilated place. Protect from moisture, heat, and strong oxidizing agents.
Handling Precautions: Avoid dust formation and prolonged exposure to air. Use proper PPE and observe standard chemical handling practices.