Product Name: Lactic Acid Buffered Solution
Chemical Name: 2-Hydroxypropanoic acid, buffered
Synonyms: Buffered Lactic Acid, Alpha-hydroxypropionic Acid Solution
Recommended Use: Laboratory reagent, pH adjustment
Supplier: Contact details required for supply chain traceability
Emergency Telephone: Region-specific poison control center or supplier's emergency line
Classification: Eye Irritant (Category 2), Skin Irritant (Category 2)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation
Pictograms: Exclamation mark for irritancy
Precautionary Statements: Avoid contact with eyes, skin, and clothing; wash hands thoroughly after handling; wear protective gloves and eye/face protection
Main Components: Lactic Acid (CAS No. 50-21-5), Buffering Agents (commonly sodium lactate or potassium lactate), Water (solvent)
Concentration: Lactic acid typically ranges 10-90% depending on buffer strength, remaining components include 1-10% buffering salts, water balance
Impurities: No significant hazardous impurities above threshold levels
Eye Contact: Remove contact lenses, flush eyes with running water for a minimum of fifteen minutes, seek medical advice
Skin Contact: Remove contaminated clothing, gently wash skin with soap and water, consult a healthcare provider if irritation continues
Inhalation: Move affected person to fresh air, keep at rest, medical attention suggested for symptoms such as coughing, difficulty breathing
Ingestion: Rinse mouth, do not induce vomiting, drink water in small sips, consult medical professional immediately
Extinguishing Media: Use water spray, dry powder, carbon dioxide, or foam; avoid direct water jets as they may spread the material
Fire Hazards: Product can decompose under fire conditions forming carbon oxides and acrid smoke
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear to prevent skin and eye contact
Personal Precautions: Evacuate surrounding area, ventilate, avoid direct contact, use personal protective equipment including gloves and goggles
Clean-Up Methods: Absorb small spills with inert material like sand or vermiculite, collect in appropriate leak-proof container, large spills may need bunding
Environmental Precautions: Prevent product from entering drains, surface water, soil, or sewers to reduce ecological impact
Handing Practices: Use in a well-ventilated area, minimize exposure, avoid inhalation of vapors or mists
Storage Conditions: Keep containers tightly closed, store in a cool, dry, well-ventilated place away from incompatible materials like strong oxidizers and bases
Packaging Materials: Use corrosion-resistant containers, properly label with content information
Exposure Limits: No established occupational exposure limits for lactic acid, reference good industrial hygiene practices
Engineering Controls: Local exhaust ventilation, safety showers, eye wash stations
Personal Protective Equipment: Lab coat or apron, chemical-resistant gloves such as nitrile, tight-fitting safety goggles, face shield when risk of splashing exists
General Hygiene: Wash hands before eating, drinking, or smoking; remove contaminated clothing
Appearance: Clear, colorless to slightly yellow liquid
Odor: Mild, characteristic sour odor
pH: Typically acidic, depending on buffer strength, often pH 2-4
Boiling Point: Approximately 122°C for pure lactic acid; buffered solution varies with water content
Melting Point: Below 0°C for solution
Solubility: Fully miscible with water
Specific Gravity: 1.2 to 1.3 (at 20°C, depends on buffer concentration)
Vapor Pressure: Low at room temperature
Viscosity: Slightly more viscous than water
Chemical Stability: Stable under recommended storage conditions, product should not form hazardous decomposition under normal use
Reactivity: May react with strong bases, strong oxidizers, alkali metals causing explosive reactions or excessive heat
Decomposition Products: Under fire conditions, carbon dioxide, carbon monoxide, toxic fumes
Polymerization: Not likely to occur
Routes of Exposure: Eye contact, skin contact, inhalation, ingestion
Potential Health Effects: Eye exposure can cause severe irritation, redness, and pain; skin contact may produce irritation or burns with prolonged exposure; inhaling vapors may lead to sore throat, coughing, headache; swallowing larger amounts could cause mouth, throat, and stomach irritation, nausea, and vomiting
Acute Toxicity: Estimated LD50 (oral, rat) 3543 mg/kg for pure lactic acid
Sensitization: No evidence of allergic skin or respiratory reactions
Chronic Effects: No data suggesting reproductive toxicity, mutagenicity, or carcinogenicity
Environmental Impact: Readily biodegradable in soil and water, does not persist in the environment
Aquatic Toxicity: Low toxicity to aquatic life, LC50 (fish) >100 mg/L
Bioaccumulation: Unlikely to bioaccumulate
Mobility: Mobile in environment due to high water solubility
Product Disposal: Dispose as chemical waste following local, regional, national, and international regulations; dilute and neutralize with sodium bicarbonate under controlled conditions, then flush to sanitary sewer with copious water if allowed
Contaminated Packaging: Containers should be triple rinsed, recycled if possible or disposed in accordance with environmental control regulations
UN Number: Not regulated for most concentrations
Transport Hazard Class: Not classified as hazardous for transport when diluted
Packing Group: Not assigned for common concentrations in laboratory supply
Shipping Name: Lactic Acid Solution, non-hazardous where diluted
Special Precautions: Prevent tipping or leaking during transit
GHS Label: Classified as Irritant under Globally Harmonized System for pure or concentrated solutions
TSCA Inventory: All ingredients listed or exempt
REACH Status: Registered in Europe for relevant uses
OSHA: No specific standard, general chemical hygiene applies
WHMIS: Class D-2B under Canadian regulations for irritants
Other Regulatory Listings: Not listed as carcinogen by IARC, NTP, or OSHA
Labelling Requirements: Clearly identify hazards for users in workplace and transport
