Description
Sodium lactate is the sodium salt of lactic acid, derived from the fermentation of natural carbohydrates such as corn or sugar beets. It is a clear, nearly odorless substance available in liquid, powder, and granule forms. This multifunctional ingredient is biodegradable, non-toxic, and water-soluble, making it widely suitable for applications in food, personal care, pharmaceutical, and industrial sectors.
Its excellent humectant, buffering, and antimicrobial properties make sodium lactate a preferred additive in skin care products and meat preservation. It helps regulate pH levels, improve moisture retention, and inhibit microbial growth. Sodium lactate is also used as an electrolyte replenisher in medical solutions and contributes to reducing corrosion in industrial applications.
Chemical Properties
Chemical Name: Sodium Lactate
Synonyms: Lactic acid sodium salt
Molecular Formula: C₃H₅NaO₃
Molecular Weight: 112.06 g/mol
CAS Number: 72-17-3
EC Number: 200-772-0
Appearance: Clear liquid, white powder or granules
Odor: Nearly odorless
Solubility: Fully soluble in water
Density: ~1.33 g/cm³ (liquid)
pH (10% solution): 6.5–8.5
Biodegradability: Readily biodegradable
Forms Available: Liquid, powder, granules
Regulatory Compliance: REACH, GHS, FDA (21 CFR), EFSA (E325)
Applications
Food Industry: Preservative, humectant, and flavor enhancer (E325)
Cosmetics & Personal Care: Moisturizer, pH regulator, and antimicrobial stabilizer
Pharmaceutical: Component in electrolyte and IV solutions
Industrial: Corrosion inhibitor in cooling systems and de-icing products
Chemical Processing: Intermediate for lactic acid derivatives
Industries of Use
Food & Beverage:
Sodium lactate extends shelf life, enhances flavor, and retains moisture in processed meat, dairy, and bakery products. It is approved as a food additive under the code E325.
Cosmetics & Skin Care:
It acts as a skin-conditioning agent by improving hydration and regulating pH in lotions, serums, and shampoos. Its antimicrobial benefits enhance product safety and stability.
Pharmaceutical & Medical:
Used in IV electrolyte solutions to restore hydration and balance. It helps maintain plasma pH and electrolyte homeostasis.
Industrial & Chemical:
In cooling systems, sodium lactate inhibits corrosion of metal surfaces. It is also incorporated in environmentally safer de-icing formulations.
Storage Conditions
Store in a cool, dry, and well-ventilated area away from moisture and direct sunlight.
Keep containers tightly sealed.
Packaging
20 L HDPE drum (liquid)
200 L HDPE barrel (liquid)
25 kg bag (powder or granule)
Safety & Handling
Avoid inhalation and contact with eyes or prolonged skin exposure.
Use protective gloves and goggles.
Dispose in accordance with local chemical regulations.
