Wodorowinian potasu

Potassium Hydrogen Tartrate
Other Names: Monopotassium tartrate, Potassium bitartrate, Potassium acid tartrate (technical grade)
CAS Number: 868-14-4
Sum Formula: KC₄H₅O₆
Molar Mass: 188.18 g/mol
Appearance: White, crystalline powder

Potassium hydrogen tartrate is an organic acid salt derived from tartaric acid. In technical and industrial contexts, it is used as a buffering agent, pH regulator, stabilizer, and reagent. It is moderately soluble in water, producing mildly acidic solutions. It is non-combustible, odorless, and chemically stable under normal conditions.

Chemical and Physical Properties
Density: ~1.95 g/cm³
Melting Point: Decomposes above 170°C
Solubility in Water: ~6.5 g/L at 20°C (solubility increases with temperature)
Solubility in Other Solvents: Insoluble in alcohol and ether
pH (1% solution): ~3.5–4.5
Odor: Odorless
Physical State: Crystalline solid

Applications
Used as a buffering agent and pH regulator in industrial processes
Applied in technical formulations requiring mildly acidic environments
Utilized in laboratory procedures as an analytical reagent or purification aid
May be used in electroplating, metal surface treatment, or as a component in detergent systems

Safety
Signal Word: None (not classified as hazardous under GHS)

First Aid Measures
Eye Contact: Rinse cautiously with water. Seek medical attention if irritation occurs
Skin Contact: Wash with soap and water
Inhalation: Move to fresh air. Seek medical advice if symptoms persist
Ingestion: Rinse mouth with water. Seek medical advice if unwell

Handling and Storage
Store in a dry, cool, well-ventilated area in a tightly sealed container
Protect from moisture, contamination, and excessive dust formation
Use appropriate PPE during handling