The chemical formula for sodium lactate is C3H5NaO3.
Understanding Sodium Lactate
Sodium lactate is the sodium salt of lactic acid, a compound naturally present in the human body and also produced industrially through the fermentation of carbohydrates. It typically appears as a clear, odorless, slightly viscous liquid when in solution, though it can also exist as a white crystalline solid. This versatile compound is widely utilized across various industries due to its humectant, preservative, and buffering properties.
Key Chemical Properties
Sodium lactate's unique composition gives it specific characteristics that make it valuable for many applications.
| Property | Description |
|---|---|
| Chemical Formula | C3H5NaO3 |
| Molar Mass | 112.06 g/mol |
| Appearance | Clear, colorless, slightly viscous liquid (often as a solution) or white crystalline solid |
| Solubility | Highly soluble in water |
| PubChem CID | 23666456 |
Common Applications of Sodium Lactate
Leveraging its multifaceted properties, sodium lactate finds extensive use in several sectors:
- Food Industry:
- Preservative: It is a common ingredient in processed meats, poultry, and fish products, where it effectively inhibits the growth of bacteria and extends shelf life.
- Humectant: Sodium lactate helps retain moisture in various food items, improving their texture and preventing them from drying out.
- Flavor Enhancer: It can subtly enhance the flavor profile of certain foods, contributing a mild, slightly salty taste.
- Cosmetics and Personal Care:
- Moisturizer: Due to its excellent humectant qualities, sodium lactate is a popular additive in skincare products like lotions, creams, and serums, as it attracts and holds moisture to the skin, promoting hydration.
- pH Regulator: It helps stabilize the pH balance of cosmetic formulations, which is crucial for product efficacy and skin compatibility.
- Pharmaceutical Industry:
- Electrolyte Replenisher: In medical settings, sodium lactate is used in intravenous solutions to treat conditions such as metabolic acidosis, where it acts as a precursor to bicarbonate in the body.
- Buffering Agent: It helps maintain a stable pH in pharmaceutical preparations, which is vital for drug stability and physiological compatibility.
Its efficacy, safety, and natural origin contribute to its widespread adoption in enhancing product quality and stability across these diverse applications.
