Product Name: 1,2-Propanediol Monobutyl Ether
Chemical Family: Glycol Ether
Synonyms: Propylene Glycol n-Butyl Ether, PnB, 1-Butoxy-2-hydroxypropane
CAS Number: 5131-66-8
Recommended Uses: Solvent in paints, coatings, cleaners, degreasers, ink manufacturing, industrial chemical processes
Company Identification: Manufacturer details, emergency contact number, customer service phone line
Classification: Eye irritation, Skin irritation, Specific target organ toxicity (single exposure, narcotic effects)
Signal Word: Warning
Hazard Statements: Causes eye irritation, may cause drowsiness or dizziness, irritates skin with prolonged exposure
Symbols: Exclamation mark
Precautionary Statements: Wear protective gloves and eye protection, avoid breathing vapor or mist, wash hands thoroughly after handling, use only outdoors or in a well-ventilated area, keep container tightly closed
Potential Health Effects: Eyes – Redness, pain, blurred vision; Skin – Dryness, cracking, discomfort; Inhalation – Drowsiness, dizziness, headache, respiratory irritation; Ingestion – Abdominal discomfort, nausea
Chemical Name: 1,2-Propanediol Monobutyl Ether
Percentage: >99% by weight
CAS Number: 5131-66-8
Impurities: Trace amounts of related glycol ethers or byproducts, typically <1%
Other Components: No significant additives considered hazardous under OSHA criteria
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical attention if irritation develops or persists
Skin Contact: Wash exposed area with soap and water, remove contaminated clothing, seek medical advice if symptoms persist
Inhalation: Move person to fresh air, restore breathing if necessary, seek medical attention if symptoms (dizziness, headache) continue
Ingestion: Rinse mouth, do not induce vomiting, get medical help, provide medical staff with MSDS and product label
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, water spray for large fires
Unsuitable Extinguishing Media: Direct water jet may scatter and spread flames
Hazards: Vapors can form explosive mixtures with air, containers may explode if heated
Combustion Products: Carbon monoxide, carbon dioxide, unidentified toxic and/or irritating compounds
Protective Equipment: Self-contained breathing apparatus, full protective clothing, avoid inhaling combustion fumes
Specific Methods: Cool exposed containers with water, avoid contact with spilled material
Personal Precautions: Use personal protective equipment (respirator, gloves, goggles), remove ignition sources, ventilate area
Environmental Precautions: Prevent product from entering drains or watercourses, notify authorities in case of spill into water
Cleanup Procedures: Absorb with inert material (sand, earth), collect in suitable container for disposal, use non-sparking tools, clean contaminated area with detergent and water
Handling: Avoid contact with skin and eyes, avoid inhaling vapor or mist, use in well-ventilated area, ground and bond containers when transferring product, do not eat, drink, or smoke when using
Storage Conditions: Store in cool, dry place, keep away from heat, sparks, open flames, incompatible substances (strong oxidizers, acids), keep container tightly sealed and clearly labeled, protect from physical damage and moisture
Incompatible Materials: Strong oxidizing agents, acids, bases
Control Parameters: Occupational exposure limits not established by OSHA or ACGIH for this product
Engineering Controls: Use local exhaust ventilation to keep airborne concentrations below recommended limits
Respiratory Protection: Use NIOSH-approved respirator when ventilation inadequate or concentrations exceed exposure guidelines
Hand Protection: Chemical-resistant gloves such as nitrile rubber or neoprene
Eye Protection: Splash-resistant safety goggles or face shield
Skin Protection: Long-sleeved clothing, chemical-resistant apron as necessary
Hygiene Measures: Wash hands and exposed skin thoroughly after handling, remove contaminated clothing and wash before reuse
Appearance: Colorless to pale yellow liquid
Odor: Mild ether-like scent
Odor Threshold: Not available
pH: ~7 (neutral to slightly alkaline)
Melting Point/Freezing Point: -75°C
Boiling Point: 230°C
Flash Point: 90°C (closed cup)
Evaporation Rate: Slower than n-butyl acetate
Flammability: Not classified as flammable, but vapors combustible
Upper/Lower Flammable Limits: 0.9% - 12% (vol % in air)
Vapor Pressure: 0.16 mmHg @ 25°C
Vapor Density: 5.1 (air=1)
Relative Density: 0.88 g/cm³ @ 20°C
Solubility: Miscible with water
Partition Coefficient (n-octanol/water): ~0.56
Auto-ignition Temperature: 270°C
Decomposition Temperature: Not determined
Viscosity: 3.7 mPa·s @ 20°C
Chemical Stability: Stable under normal handling and storage conditions
Reactivity: Can react with strong oxidizing agents, acids, bases, may release irritant vapors
Hazardous Reactions: Not expected under normal use, formation of peroxides possible over time
Conditions to Avoid: Heat, sparks, open flames, sources of ignition, prolonged exposure to air when uncapped
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, other toxic gases
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: LD50 oral (rat): ~2,500 mg/kg; LD50 dermal (rabbit): ~2,600 mg/kg
Chronic Effects: Prolonged or repeated exposure may cause liver or kidney effects, skin irritation, central nervous system depression
Irritation/Corrosion: Causes mild to moderate irritation to eyes and skin
Sensitization: Not classified as a skin sensitizer
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: No evidence in animal studies
Mutagenicity: No mutagenic effects reported
Other Relevant Data: Long-term exposure at high concentration may cause adverse systemic effects
Aquatic Toxicity: LC50 (fish, 96h): 560-1,000 mg/L, EC50 (daphnia, 48h): 1,000-1,400 mg/L
Persistence and Degradability: Biodegradable under aerobic conditions
Bioaccumulation Potential: Low, low log Kow
Mobility in Soil: High, soluble in water, may migrate through soil
Other Adverse Effects: Large spills may cause oxygen depletion in aquatic environments, always prevent discharge to waterways
Waste Treatment Methods: Incinerate or dispose of at permitted hazardous waste facility following local, state, and federal regulations
Container Disposal: Triple rinse containers, offer for recycling or reconditioning if possible, otherwise puncture and dispose according to regulations
Special Precautions: Never pour into sewers, storm drains, or natural water sources
Recommended Methods: Consult licensed waste disposal service, do not allow material to contaminate soil or groundwater
UN Number: Not regulated for ground or air transport as dangerous goods in most countries
Proper Shipping Name: Not regulated
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Not classified as a marine pollutant
Special Precautions: Avoid transport with incompatible chemicals (strong oxidizers), secure load to prevent leaks or spills during transit
US TSCA Inventory: Listed
OSHA Status: Regulated for safe use under Hazard Communication Standard
SARA Title III: Not listed as Extremely Hazardous Substance, not subject to Section 313 reporting
California Proposition 65: Not listed
Canada DSL: Listed
WHMIS Classification: D2B (Toxic material causing other toxic effects)
EU Classification: Substance not classified as dangerous according to EU Regulation 1272/2008 (CLP/GHS)
Label Requirements: Conforms to national and international labeling standards; hazard pictograms, signal word, hazard, and precautionary statements included as required
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