Potassium lactate
CAS Number
996-31-6
EC Number
213-631-3
E Number
E326
What is Potassium lactate?
Potassium lactate (CAS 996-31-6), also designated E326, is the potassium salt of lactic acid, primarily a concentrated aqueous solution.
Where is Potassium lactate used?
- Food: humectant, pH buffer and antimicrobial synergist
- Processed meats and ready-to-eat foods: extends shelf life by suppressing pathogen growth, particularly Listeria, with a mild, clean flavor
- Sauces and marinades: acidulant and buffering agent
- Bakery products: potassium-based labeling preferred over sodium alternatives
- Personal care: moisturizing agent and pH adjuster in lotions, creams and leave-on skin care
- Pharmaceuticals: buffering excipient in topical preparations and oral dosage forms requiring controlled acidity
- Its hygroscopic character supports water retention in the finished formula.
Commercial specifications
- 60% aqueous solution; higher-concentration and dry powder forms
- Pharmaceutical-grade to USP and Ph. Eur. standards
- Packaging: drums, IBCs and bulk tanker supply
Other Names (Synonyms)
potassium 2-hydroxypropanoate|Monopotassium lactate|Lactic acid, potassium salt|Conclyte K|Monopotassium 2-hydroxypropanoate|Lactic acid, monopotassium salt|Propanoic acid, 2-hydroxy-, monopotassium salt|Potassium alpha-hydroxypropionate|E326
What are the physical properties of Potassium lactate?
Boiling Point 115 °C
Density 1.32 g/cm3
Color Clear, colorless, or slightly yellowish
Odor Odorless
Form syrupy liquid
pH 7.45(1 mM solution);7.89(10 mM solution);8.3(100 mM solution);8.62(1000 mM solution)
How is Potassium lactate classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H319 Causes serious eye irritation
Precautionary Statements
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P264+P265 Wash … thoroughly after handling.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.