Product Name: (S)-(+)-1,2-Propanediol
Synonyms: Propylene glycol, Propanediol-1,2-(S)-(+), Methyl glycol
CAS Number: 4254-15-3
Recommended Use: Solvent, intermediate, laboratory chemical
Supplier: Information available on the product label
Emergency Phone: Supplier contact or local poison center
Classification: Not classified as hazardous under GHS guidelines
Signal Word: None
Pictograms: Not required
Hazard Statements: May cause mild skin and eye irritation
Precautionary Statements: Avoid direct contact with skin and eyes, wash hands fully after handling, keep container tightly closed
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Name: (S)-(+)-1,2-Propanediol
Concentration: ≥98% by weight
Impurities: Water <2%, other impurities <0.5%
Molecular Formula: C3H8O2
Molecular Weight: 76.09 g/mol
Inhalation: Move exposed person to fresh air, seek medical attention if symptoms persist
Skin contact: Wash area with plenty of water and soap, remove contaminated clothing
Eye contact: Immediately rinse with water for at least 15 minutes, hold eyelids open, get medical advice if irritation occurs
Ingestion: Rinse mouth with water, do not induce vomiting, call physician if large quantity swallowed or symptoms develop
Symptoms: Mild irritation, redness, discomfort
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Media: High pressure water jet can spread liquid
Special Hazards: Combustion releases carbon monoxide and carbon dioxide
Protective Equipment: Firefighters need self-contained breathing apparatus and full protective gear
Advice: Contain firewater runoff, cool containers with water spray to prevent bursting
Personal Precautions: Use personal protection, avoid breathing vapors, ensure proper ventilation
Environmental Precautions: Prevent further leakage or spillage, stop flow of product into drains, surface water, or soil
Methods for Cleanup: Soak up with inert absorbent material (sand, diatomite), collect in suitable containers, clean contaminated area with water
Disposal: Dispose of as chemical waste in accordance with local regulations
Handling: Use in a well-ventilated area, avoid contact with eyes and skin, do not eat, drink, or smoke when using
Storage: Store in tightly closed original container, keep in cool, dry, well-ventilated place, keep away from oxidizing materials
Incompatibles: Strong oxidizers, strong acids or bases
Handling Precautions: Avoid spillage, use clean, dry implements, label all containers
Occupational Exposure Limits: No established OSHA or ACGIH exposure limits
Engineering Controls: Use local exhaust or general room ventilation
Personal Protective Equipment: Chemical resistant gloves, protective goggles or face shield, lab coat or apron
Respiratory Protection: Use NIOSH/MSHA approved respirators if ventilation is inadequate or in case of significant vapor formation
Hygiene Measures: Wash hands and face before breaks and at end of workday
Appearance: Clear, colorless, viscous liquid
Odor: Faint, characteristic
Odor Threshold: Not determined
pH: 6.5 - 7.5 (at 20°C, 50g/L water)
Melting Point: -59°C
Boiling Point: 187°C
Flash Point: 99°C (closed cup)
Evaporation Rate: Negligible
Flammability: May burn at high temperature
Vapor Pressure: 0.07 mmHg at 25°C
Vapor Density: 2.6 (air = 1)
Solubility: Miscible with water, ethanol, acetone
Partition Coefficient (log Pow): -0.92
Auto-ignition Temperature: 371°C
Decomposition Temperature: Not available
Viscosity: 52 mPa·s at 20°C
Density: 1.036 g/cm³ at 20°C
Stability: Stable under recommended storage conditions
Chemical Reactivity: Reacts with strong oxidizing agents
Conditions to Avoid: Heat, flames, sparks, open containers, moisture entry
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide formed in fire
Polymerization: Will not occur
Acute Toxicity: LD50 (oral, rat): 20,000 mg/kg; LD50 (oral, mouse): 14,800 mg/kg
Skin corrosion/irritation: Not classified, may cause mild irritation in some individuals
Serious eye damage/irritation: Mild transient irritation, no permanent damage expected
Respiratory Sensitization: Not a sensitizer
Specific target organ toxicity: No significant data for repeat exposure
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: No evidence from current testing
Reproductive Toxicity: No indication from available studies
Aquatic Toxicity: LC50 (fish, 96h): >10,000 mg/L
Persistence and Degradability: Readily biodegradable, rapid breakdown in soil and water
Bioaccumulative Potential: Low due to high water solubility
Mobility in Soil: High, product moves easily with water
Ecotoxicological Notes: Large releases can impact aquatic environment by oxygen depletion from microbial decomposition
Disposal Method: Use a licensed chemical waste contractor, incinerate under controlled conditions if permitted
Contaminated Packaging: Rinse containers, destroy or recycle if allowed
Sewage Disposal: Avoid release into drains or sewers, follow local environmental guidelines
Regulatory Requirements: Disposal must align with applicable regulations for chemical waste
UN Number: Not regulated
UN Proper Shipping Name: Not regulated for transport
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Environmental Hazards: Not classified as marine pollutant
Special Precautions: Ensure container integrity, secure upright position during transport
Inventory Status: Listed on TSCA, EINECS/ELINCS, DSL, ENCS, AICS, and other major inventories
Safety, Health, and Environmental Regulations/Legislation Specific: No specific labeling required under GHS, OSHA, or EU CLP for this material in its pure form
Restrictions: None identified for normal industrial use
Workplace Classification: Not regulated as hazardous chemical
Other Regulatory Lists: Not listed as hazardous waste, not controlled as substance of concern
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