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Material Safety Data Sheet: Pentaethylene Glycol Monomethyl Ether

Identification

Product Name: Pentaethylene Glycol Monomethyl Ether
Synonyms: PEG-5 Methyl Ether, Poly(ethylene glycol) methyl ether
CAS Number: 4829-14-1
Recommended Use: Solvent for chemical synthesis, laboratory reagent, cleaning agent
Supplier Details: Chemical Solutions Co., 125 Research Parkway, City, Country, Phone: +123-456-7890
Emergency Contact: 24/7 Emergency Number: +123-456-7899

Hazard Identification

GHS Classification: Not classified as hazardous according to GHS criteria
Primary Hazards: May irritate eyes and skin after prolonged or repeated contact, ingestion can upset stomach
Signal Word: None
H-Phrases: H315 (Causes skin irritation), H319 (Causes serious eye irritation)
Pictograms: None mandated for this product
Precautionary Statements: Avoid breathing vapors, wash hands after use, avoid contact with eyes and skin

Composition / Information on Ingredients

Chemical Identity: Pentaethylene Glycol Monomethyl Ether
Molecular Formula: CH3O(C2H4O)5H
EC Number: 225-493-7
Purity: ≥ 99%
Impurities: Trace di- and tri-ethylene glycol derivatives, typical for synthesis processes
Other Ingredients: None

First Aid Measures

Inhalation: Move to fresh air, seek medical advice if breathing difficulty persists
Skin Contact: Wash thoroughly with soapy water, remove contaminated clothing
Eye Contact: Rinse cautiously, holding eyelids apart, for at least 15 minutes, consult eye doctor if irritation stays
Ingestion: Rinse mouth, drink water to dilute, do not induce vomiting, visit the clinic if large amounts swallowed or symptoms develop
Most Important Symptoms: Redness or mild irritation to eyes and skin, upset stomach
Advice for Doctor: Supportive care only, no specific antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Combustion Hazards: Burns to release carbon monoxide, carbon dioxide, and possibly small amounts of formaldehyde
Protective Equipment: Firefighters use self-contained breathing apparatus and protective clothing
Explosion Data: Not known to be explosive or present unusual hazards
Special Instructions: Cool containers with water if exposed to heat, stay upwind, keep out non-responders

Accidental Release Measures

Personal Precautions: Use protective gloves, goggles, and coveralls to avoid skin and eye contact
Environmental Precautions: Prevent from entering drains, soil, and waterways
Cleanup Methods: Contain spill with sand or absorbent material, scoop or vacuum up and transfer to labeled waste drums
Decontamination: Wash area with soap and water; ventilate the space
Waste Disposal: Dispose in accordance with local regulations, do not flush down the drain

Handling and Storage

Handling: Avoid breathing vapors, use in a ventilated area, never eat, drink, or smoke working with this product
Storage Conditions: Store tightly closed in a cool, dry, well-ventilated spot, away from direct sunlight and heat sources
Incompatible Materials: Strong acids, alkalis, and oxidizing agents
Safe Packaging: Use original containers or chemical-resistant drums

Exposure Controls and Personal Protection

Exposure Limits: No occupational exposure limit values set by OSHA or ACGIH for this compound
Engineering Controls: Ensure local exhaust ventilation for indoor uses
Eye Protection: Safety goggles
Skin Protection: Chemical-resistant gloves (nitrile, latex), lab coat
Respiratory Protection: Not required during normal use; use NIOSH-approved mask for high vapor concentrations
Hygiene Measures: Wash hands and face thoroughly after handling, remove soiled clothing

Physical and Chemical Properties

Appearance: Clear, colorless liquid
Odor: Mild, ether-like
pH: Not applicable
Boiling Point: 270–280°C
Melting Point: Approximately -40°C
Flash Point: 138–145°C (open cup)
Vapor Pressure: Less than 0.01 mmHg at 20°C
Solubility: Miscible with water
Density: 1.08–1.10 g/cm³
Viscosity: Around 30–40 mPa·s at 25°C
Partition Coefficient (log Kow): < 1

Stability and Reactivity

Stability: Chemically stable under normal handling and storage
Reactive Conditions: Heat, strong acids and oxidizing substances can trigger decomposition
Hazardous Decomposition: Thermal degradation can produce toxic fumes such as carbon monoxide, carbon dioxide, possible aldehydes
Polymerization: Not expected
Incompatible Materials: Concentrated oxidizers and acids—a spill here creates mess and risk

Toxicological Information

Acute Toxicity: LD50 (oral, rat) estimated >2000 mg/kg; not acutely toxic by standard criteria
Skin Irritation: Mild, usually disappears with washing
Eye Irritation: Can cause irritation or redness, largely reversible
Respiratory Effects: May cause mild nose and throat irritation if aerosolized, rarely causes harm
Chronic Effects: No significant evidence for carcinogenesis or mutagenicity from ingredient data
Sensitization: Not expected to cause allergy from typical use
Other Data: Similar glycols have shown low toxicity in repeated dosing

Ecological Information

Aquatic Toxicity: Expected low toxicity to aquatic life, based on structural analogues
Persistence and Degradability: Readily biodegradable by microorganisms over days to weeks
Bioaccumulation: Not expected—log Kow suggests rapid elimination by living organisms
Mobility in Soil: Moves readily through soil due to high water solubility
Other Effects: Large, uncontrolled releases could add excess chemical oxygen demand to surface water

Disposal Considerations

Product Disposal: Take waste to a licensed hazardous or chemical waste disposal facility
Container Disposal: Triple-rinse, deface labels, recycle or dispose following regulations
Precautions: Do not put in household or municipal waste, keep away from groundwater
Disposal Methods: Consult local, regional, and national regulations—professional disposal companies make this easy and safe

Transport Information

UN Number: Not regulated for transport
UN Proper Shipping Name: Not assigned, not considered dangerous goods
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not environmentally hazardous under transport rules
Special Precautions: No specific requirements for packing or segregating
DOT/ADR/RID/IMDG/IATA: Not listed as a hazardous chemical

Regulatory Information

OSHA: Not hazardous under OSHA Hazard Communication Standard
TSCA: Listed in the US TSCA Chemical Inventory
REACH: Listed; does not require authorization or restriction
SARA Title III: Not a reportable substance, not on Extremely Hazardous Substances list
California Proposition 65: Not listed
WHMIS (Canada): Not controlled
Other: No Priority Pollutant status; check recent regulatory updates at time of handling or shipping