Sodium Lactate
Sodium Lactate is a clear to slightly yellowish, viscous liquid obtained by neutralizing lactic acid with sodium hydroxide. It is widely used as a food additive, pharmaceutical excipient, and in cosmetic formulations due to its humectant, buffering, and antimicrobial properties. This grade is valued for its ability to retain moisture, regulate acidity, and act as a preservative in various industries. It also finds applications in the medical field as an electrolyte replenisher and pH stabilizer.
Sodium Lactate
Primary Uses
- Food Industry
- Used as a food preservative (E325) to inhibit microbial growth and extend shelf life of processed foods.
- Functions as a humectant to retain moisture in meat, bakery products, and beverages.
- Acts as a pH regulator and buffering agent in food formulations.
- Used in curing meat products to improve flavor and texture.
- Pharmaceuticals and Healthcare
- Incorporated as a buffering agent and stabilizer in intravenous (IV) fluids and oral rehydration solutions.
- Used as an electrolyte replenisher to restore sodium and fluid balance.
- Serves as a pH adjuster in topical and systemic pharmaceutical formulations.
- Cosmetics and Personal Care
- Functions as a humectant and skin-conditioning agent in lotions, creams, shampoos, and soaps.
- Enhances moisture retention and maintains skin hydration.
- Acts as a mild antimicrobial preservative in cosmetic formulations.
- Industrial Applications
- Used as a corrosion inhibitor in metalworking fluids and cooling systems.
- Employed in textile processing as a pH buffer and softening agent.
- Acts as a chelating agent in cleaning formulations.
Secondary Uses
- Agriculture
- Used as a biodegradable additive in pesticide formulations.
- Applied as a humectant to improve seed germination and plant hydration.
- Leather Industry
- Utilized in tanning processes for pH control and preservation of hides.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium 2-hydroxypropanoate
- Common/Trade Name: Sodium Lactate 60%
- CAS Number: 72-17-3
- HS Code: 2918.16
- Synonyms: Sodium Lactic acid salt, E325
2. Physical & Chemical Properties
- Physical State: Liquid
- Color & Odor: Clear to slightly yellow, mild odor
- Concentration: 60% solution (w/w)
- pH: Approximately 6.5 - 8.5 (depending on concentration)
- Density: ~1.21 g/cm³
- Solubility: Miscible with water
3. Safety & Hazard Attributes
- GHS Classification: Generally recognized as safe (GRAS)
- Toxicity: Low toxicity; non-irritating at normal handling concentrations
- Exposure Limits: Standard occupational exposure limits apply
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry place away from direct sunlight and incompatible substances such as strong oxidizers
- Container Type: Typically supplied in food-grade plastic drums or bulk containers
- Shelf Life: Stable for up to 2 years under proper storage
- Handling Precautions: Use personal protective equipment to avoid skin and eye contact; ensure good ventilation
- Storage Measures: Keep containers tightly closed and stored in a dry environment
5. Regulatory & Compliance Attributes
- Complies with food-grade standards (FDA, FCC, USP)
- Approved for use as a food additive and pharmaceutical ingredient globally
- Meets cosmetic ingredient regulations (e.g., EU Cosmetics Regulation)
6. Environmental & Health Impact
- Biodegradability: Biodegradable and environmentally friendly
- Ecotoxicity: Low toxicity to aquatic organisms
- Bioaccumulation: Not expected to bioaccumulate
Safety Handling Precautions
- PPE Required: Gloves, goggles, protective clothing recommended
- Handling Guidelines: Avoid prolonged skin contact and eye exposure
- Storage Measures: Store away from strong oxidizers and acids to prevent reactions
First Aid Measures
- Inhalation: Move to fresh air if irritation occurs; seek medical attention if symptoms persist
- Skin Contact: Wash with soap and water; seek medical advice if irritation develops
- Eye Contact: Rinse thoroughly with water for at least 15 minutes; seek medical care if irritation persists
- Ingestion: Rinse mouth and drink water; seek medical attention if large quantities ingested
Firefighting Measures
- Fire Hazards: Non-flammable but may decompose at high temperatures producing toxic fumes
- Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ extinguishers
- Special Precautions: Wear self-contained breathing apparatus if involved in fire
- Hazardous Combustion Products: Carbon oxides and sodium oxides
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