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Material Safety Data Sheet (MSDS) - Triethylene Glycol Monoethyl Ether

Identification

Product Name: Triethylene Glycol Monoethyl Ether
Synonyms: Ethoxytriethylene glycol, 2-(2-(2-Ethoxyethoxy)ethoxy)ethanol
Chemical Formula: C8H18O4
CAS Number: 112-50-5
Supplier: Manufacturer or distributor contact information printed clearly on all labels
Emergency Phone: 24-hour contact number for use in the event of exposure, leak, or spill
Recommended Use: Solvent in industrial applications, cleaning formulations, chemical synthesis

Hazard Identification

GHS Classification: Not classified as hazardous under GHS criteria
Label Elements: No symbol or signal word required under standard labeling system
Potential Health Effects: Prolonged or repeated skin contact could cause dryness or mild irritation; vapors may cause mild eye and respiratory irritation; swallowing large quantities may upset gastrointestinal tract
Precautionary Statements: Avoid vapor inhalation; wear eye protection for splashes; wash hands after handling
Routes of Entry: Inhalation, skin and eye contact, ingestion

Composition / Information on Ingredients

Chemical Name: Triethylene Glycol Monoethyl Ether
Synonyms: Ethoxytriethylene glycol
Concentration: 99% or higher in most bulk forms
CAS Number: 112-50-5
Impurities: Small traces of other ethers may be present depending on source
Additives: Typically contains no additives or stabilizers in pure form

First Aid Measures

Inhalation: Move exposed person to fresh air; seek medical attention if symptoms persist
Skin Contact: Wash off with plenty of water and mild soap; remove contaminated clothing; see a physician if redness or irritation develops
Eye Contact: Flush eyes with water for at least 15 minutes; keep eyelids open; seek medical attention for persistent discomfort
Ingestion: Rinse mouth with water; never give anything by mouth to an unconscious person; seek medical attention if large amounts swallowed
General Advice: Remove sources of further exposure; monitor for delayed symptoms

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide
Unsuitable Extinguishing Media: Do not use a strong stream of water that could scatter chemical
Hazards from Combustion: Forms carbon monoxide, carbon dioxide, and possibly aldehydes if burned
Special Precautions: Firefighters should wear self-contained breathing apparatus and protective gear
Advice for Firefighters: Keep containers cool with water spray; avoid inhalation of fumes; control runoff

Accidental Release Measures

Personal Protection: Stop leak if safe; ventilate area thoroughly; prevent contact with skin and eyes
Environmental Precautions: Avoid discharge into drains or open waterways; contain spill with absorbents like sand or vermiculite
Cleanup Methods: Absorb spill, collect residue in suitable closed container for disposal; clean area with soap and water
Large Spills: Prevent entry to sewers; contact local authorities if spill enters environment
Other Precautions: Remove ignition sources from area; use non-sparking tools

Handling and Storage

Handling: Use only in well-ventilated places; wear gloves and eye protection; wash hands after each use
Storage Conditions: Store in tightly closed containers in a dry, cool, well-ventilated place; protect from moisture and direct sunlight
Incompatibles: Do not store with strong oxidizers or acids, which can react with ether component
Specific Use Considerations: Use care to avoid spillage; assign storage area away from food products or animal feeds

Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific ACGIH or OSHA exposure limits; keep airborne concentrations below nuisance levels
Engineering Controls: Local exhaust ventilation or general dilution ventilation
Personal Protection (PPE): Safety glasses with side shields; nitrile gloves or similar chemical resistant material; lightweight aprons to protect skin
Respiratory Protection: Not typically required under normal ventilation; use an approved organic vapor respirator if engineering controls are not sufficient
Hygiene Measures: Wash hands after handling; remove soiled clothing and launder before reuse

Physical and Chemical Properties

Appearance: Colorless, slightly viscous liquid
Odor: Faint, mild ether-like
Boiling Point: 256°C (493°F)
Melting Point: -30°C (-22°F)
Flash Point: 132°C (270°F) (closed cup)
Vapor Pressure: Less than 1 mmHg at 25°C
Solubility: Miscible with water and most organic solvents
Specific Gravity: 1.035-1.045
pH: Not applicable (neutral in pure state)
Partition Coefficient (log Kow): Approximately -1.4 (low potential for bioaccumulation)
Evaporation Rate: Slower than water
Viscosity: Moderate, resembles that of glycerin

Stability and Reactivity

Chemical Stability: Stable under recommended storage and use conditions
Reactivity: Low reactivity in most environments
Hazardous Reactions: Can react vigorously with strong oxidizers; avoid mixing with acids, peroxides
Hazardous Decomposition: Thermal breakdown releases oxides of carbon
Incompatible Materials: Avoid contact with strong oxidizing agents, concentrated acids, bases
Other Concerns: Avoid exposure to temperatures above flash point; do not use with aluminum equipment for long-term storage

Toxicological Information

Acute Toxicity: Oral LD50 (rat) > 5000 mg/kg; very low toxicity by inhalation or skin contact
Skin Corrosiveness: Mild skin irritant with repeated, prolonged exposure
Eye Effects: May cause irritation, tearing, redness
Chronic Effects: No known long-term human health impacts with normal industrial use
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, OSHA
Mutagenicity: No data indicating mutagenic potential
Sensitization: Does not sensitize skin or respiratory tract under normal use

Ecological Information

Ecotoxicity: Expected to have low toxicity to aquatic organisms; LC50 (96h, fish) estimated > 1000 mg/L
Persistence and Degradability: Biodegradable; breaks down rapidly in presence of microorganisms
Bioaccumulation: Not expected to bioaccumulate; log Kow suggests low environmental buildup
Mobility in Soil: High water solubility allows movement through soil; product unlikely to persist in surface water
Other Relevant Data: Not expected to cause long-term environmental harm under recommended use and disposal

Disposal Considerations

Waste Disposal: Collect in sealed containers and dispose of according to local, regional, state, and national regulations
Methods: Small amounts may be diluted heavily with water and processed through municipal treatment plant with appropriate authorization
Special Precautions: Do not release to surface water, stormwater systems, or soil; avoid incineration unless approved by regulatory authority
Container Disposal: Empty containers may still contain residues; dispose of safely following label guidelines

Transport Information

UN Number: Not regulated for land, air, or sea transport
Transport Hazard Class: Not classified as hazardous or dangerous good
Packaging Requirements: Use standard, durable containers with tight-fitting closures; check for corrosion if stored long-term
Labels: General ‘chemical’ label; include supplier and product name
Precautions: Protect from overturning, excessive heat, leaking; do not combine with incompatible chemicals during shipping

Regulatory Information

Workplace Classification: Not classified as hazardous under many global chemical regulations, including OSHA and REACH
Inventory Status: Listed or exempted under TSCA (US), EINECS/ELINCS (EU), DSL (Canada), AICS (Australia)
Right-to-Know Listings: Included on state and national chemical inventories in most major jurisdictions
Other Regulations: No reportable quantity under CERCLA; not a Marine Pollutant under IMDG
Special Restrictions: Use and occupational exposure monitored for high-volume users or specific end-products