Product Name: 1,2-Pentanediol
Chemical Name: Pentane-1,2-diol
Synonyms: Pentylene glycol
CAS Number: 5343-92-0
Recommended Uses: Solvent, cosmetic ingredient, specialty chemical
Manufacturer Information: Details available upon request via supplier
Emergency Contact: Chemtrec +1-800-424-9300 (US)
Product Code: Varies with supplier
Classification: Not classified as hazardous according to OSHA Hazard Communication Standard
Label Elements: None required for labeling under GHS criteria
Signal Word: None
Pictograms: None
Hazard Statements: May be irritating to eyes
Precautionary Statements: Avoid contact with eyes; wash hands after handling
Potential Health Effects: Eye irritation, minimal skin irritation, low inhalation risk
Environmental Hazards: No immediate or chronic hazards identified for aquatic systems
Chemical Identity: 1,2-Pentanediol
Common Name: Pentylene glycol
Concentration: >99% by weight
CAS Number: 5343-92-0
Impurities: Trace moisture, possible residuals from manufacturing, typically below significant levels
Inhalation: Move person to fresh air, provide oxygen if breathing is difficult, call a physician if symptoms persist
Skin Contact: Remove contaminated clothing, wash area with plenty of water and mild soap, consult medical attention for persistent irritation
Eye Contact: Rinse cautiously with clean water for at least 15 minutes, lift eyelids to ensure complete flushing, seek medical attention if irritation or redness persists
Ingestion: Rinse mouth, do not induce vomiting, drink water if alert, seek medical help for discomfort
Symptoms: Redness, stinging or burning sensation, mild gastrointestinal upset with ingestion
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: Direct stream of water may spread burning material
Specific Hazards: Combustible at elevated temperatures, potential vapor generation when heated
Hazardous Combustion Products: Carbon dioxide, carbon monoxide, possible minor organic vapors
Protective Equipment: Firefighters should wear full protective clothing and self-contained breathing apparatus
Special Precautions: Use water spray to cool exposed containers, approach fire from upwind side, prevent runoff from contaminating sewers or waterways
Personal Precautions: Ensure adequate ventilation, avoid breathing vapors, wear suitable protective clothing
Environmental Precautions: Prevent from entering drains, waterways, or soil
Methods for Cleanup: Soak up with inert absorbent material, such as sand or earth, shovel into closed containers
Decontamination: Wash area with plenty of water and detergent, ventilate site
Disposal of Collected Material: Dispose of according to local, regional, national, and international regulations
Precautions for Safe Handling: Use in a well-ventilated area, avoid contact with skin and eyes, prevent prolonged direct exposure
Hygiene Measures: Always wash hands after use, remove contaminated clothing before eating or smoking
Conditions for Safe Storage: Store tightly closed in original container, hold at temperatures between 10°C and 30°C
Storage Class: Chemical storage, non-combustible liquids
Incompatibilities: Strong oxidizing agents, strong acids or bases
Control Parameters: No established permissible exposure limits (PEL) or threshold limit values (TLV)
Engineering Controls: Use with local exhaust ventilation if available, ensure eyewash stations are accessible
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), goggles, long-sleeved lab coat
Respiratory Protection: Required only if ventilation is inadequate, use NIOSH-approved respirator
Environmental Exposure Control: Avoid uncontrolled release to environment, use spill trays where appropriate
Appearance: Colorless to slightly yellowish, viscous liquid
Odor: Mild, faint, not highly perceptible
Melting Point: Approximately -5°C
Boiling Point: 212°C at 1 atm
Vapor Pressure: Very low at ambient temperature
Solubility: Miscible with water, soluble in many organic solvents
Density: 0.98–1.01 g/cm3 at 20°C
pH: 6–7 (10% aqueous solution)
Viscosity: Higher than water, increases at lower temperatures
Flash Point: 121°C (closed cup)
Autoignition Temperature: Above 320°C
Partition Coefficient (log Kow): Roughly 0.2–0.7
Evaporation Rate: Negligible under normal conditions
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: No rapid or violent reactions observed under standard use
Hazardous Polymerization: Not known to occur
Conditions to Avoid: Significant heat, open flames, strong oxidizers
Incompatible Materials: Oxidizing agents, some acids and bases
Decomposition Products: Carbon dioxide, carbon monoxide, traces of organic compounds under severe heating
Acute Toxicity (oral, rat): LD50 > 2,000 mg/kg
Skin Corrosion/Irritation: May cause slight irritation on prolonged or repeated contact
Serious Eye Damage/Irritation: Direct contact can cause redness, tearing, transient pain
Respiratory Sensitization: Not classified as a respiratory sensitizer
Germ Cell Mutagenicity: No evidence found in standard testing
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: Studies show no adverse effects at exposure levels typical for industrial and consumer handling
STOT-Single Exposure: No significant data for target organ toxicity
STOT-Repeated Exposure: No expected adverse effects under expected handling and uses
Ecotoxicity: Low toxicity to aquatic organisms at relevant environmental concentrations
Persistence and Degradability: Readily biodegradable under aerobic conditions
Bioaccumulation Potential: Low potential, log Kow indicates minimal accumulation
Mobility in Soil: Expected to exhibit moderate mobility due to water solubility
Other Adverse Effects: No evidence of long-term or cumulative environmental impact in standard tests
Disposal Method: Follow local, regional, and national regulations for disposal
Product: Send for chemical incineration in compliance with government regulations, avoid entry into drains, surface waters, or groundwaters
Contaminated Packaging: Rinse well and send to authorized waste facility
Special Precautions: Do not attempt open burning or uncontrolled landfilling
UN Number: Not regulated for transport
UN Proper Shipping Name: Not applicable
Transport Hazard Class: Not classified as hazardous for transport
Packing Group: Not applicable
Marine Pollutant: No
Special Transport Precautions: Handle containers with care, secure in transport to avoid shifting or leakage, avoid exposure to excessive heat
OSHA Status: Not classified as hazardous
TSCA Inventory: Listed
REACH Status: Registered or pre-registered in EU
WHMIS (Canada): Not controlled
SARA Title III (Sections 311/312): No hazard categories flagged
California Proposition 65: Not listed as a chemical known to cause cancer or reproductive toxicity
Other Regulations: Assess local chemical inventories, check with relevant environmental authorities for additional national requirements
