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Chemical Name: 2,2-Dichloroethyl Ether
Common Uses: Solvent in specialized synthesis, chemical intermediate
CAS Number: 111-44-4
Appearance: Clear, colorless liquid with a strong, sweet odor
Acute Dangers: Contact burns skin and eyes, vapor causes throat irritation and coughing, short exposures risk dizziness
Chronic Dangers: Sustained exposure puts liver and kidneys at risk, may sensitize lungs
Flammability: Can form flammable vapor-air mixtures
Routes of Entry: Inhalation, skin absorption, ingestion
GHS Classification: Health hazard, environmental hazard, flammable
Main Component: 2,2-Dichloroethyl Ether
Concentration: Typically above 95% in laboratory supply
Contaminants: Trace chlorinated byproducts
Impurities Matter: Unexpected reactions in impure batches cause dangerous decomposition
Inhalation: Remove to fresh air, assist breathing, seek medical attention
Skin Contact: Remove contaminated clothing, rinse skin with water for at least 15 minutes
Eye Contact: Rinse for several minutes under running water, get urgent help
Ingestion: Never induce vomiting, rinse mouth, call poison control right away
Key Reactions: Delayed onset of symptoms means even brief exposure needs follow-up
Suitable Extinguishers: Dry chemical, carbon dioxide, alcohol-resistant foam
Combustion Hazards: Gives off hydrogen chloride, phosgene, and carbon oxides
Firefighting Approach: Run full protective gear, including rebreather mask, cool exposed containers with water spray, control runoff
Explosion Risk: Vapors travel along surfaces and ignite at a distant source
Preparedness: Regular training makes the difference between containment and disaster
Spill Response: Evacuate area, ventilate, avoid breathing vapors, control ignition sources
Containment: Absorb with sand or inert material, prevent entry into waterways or sewers
Cleanup Method: Use chemical-resistant equipment and clothing, waste double-bagged for removal
Personnel Safety: Proper respirators and gloves, splash-proof goggles at minimum
Environmental Risk: Even minor releases harm aquatic life, so fast, thorough cleanup becomes a responsibility
Workplace Practice: Keep tightly sealed, open only in ventilated hoods, never store near heat or spark sources
Container Advice: Store in corrosion-resistant containers, label with clear hazard warnings
Storage Conditions: Cool, dry, locked cabinet separated from incompatible chemicals
Aging Risks: Over time, peroxides can form, so regular inspection and chemical stabilizers matter
Engineering Controls: Use closed systems, chemical fume hoods, regular air quality checks
Personal Equipment: Nitrile gloves, face shield, lab coat, and full-face respirator when splashing possible
Workplace Limits: OSHA PEL and ACGIH TLV information reflects the need for caution at low concentrations
Medical Surveillance: Ongoing employee health monitoring identifies problems before symptoms worsen
Molecular Structure: Two carbon atoms, each bearing a chlorine, joined by an ether oxygen
Boiling Point: About 139°C
Vapor Pressure: Moderate, rises in warm conditions
Solubility: Limited in water, mixes readily with many organic solvents
Density: About 1.29 g/cm³
Odor Threshold: Pungent, but not always enough warning
Chemical Stability: Stable at room temperature if kept dry and away from light
Dangerous Reactions: Reacts with strong acids, bases, and oxidizers
Decomposition: Produces hazardous vapors including hydrogen chloride and phosgene
Storage Caution: Long-term storage or poor sealing fosters peroxide formation
Short-term Exposure: Harsh irritant to lungs and skin, acute inhalation risks include nausea, dizziness, chemical burns
Long-term Risk: Prolonged or repeated exposure weakens liver/kidney function, raises cancer risk in some animal tests
Sensitization: Skin and respiratory tract more easily affected after repeated low-level exposure
Absorption Route: Entry by skin, lungs, or accidental ingestion, each causing distinct symptoms
Worker Experience: Real-world cases show even careful handling sometimes ends with emergency treatment
Persistence: Breakdown slow in soil and water, endangers aquatic life
Toxicity: Causes long-term damage to freshwater species, damages fish and invertebrates
Bioaccumulation: Tends to build up in organisms rather than degrade quickly
Containment: Stop runoff and spills from leaving controlled sites, monitor local water sources near storage
Waste Handling: Treat as hazardous chemical waste, keep separate from non-chlorinated solvents
Incineration: Needs dedicated hazardous-waste incinerator, specialized scrubbing for acid gases
Container Disposal: Triple rinse with appropriate solvent, destroy label before discarding
Regulatory Drivers: Many regions ban landfill dumping, which means proper incineration or chemical neutralization is enforced
Shipping Class: Classified as hazardous for road, air, water
UN Identification: Carried under strict controls, documentation required at every stage
Packaging: Sealed drums or cans, kept upright and cooled, labeled with warning pictograms
Emergency Actions: Spillage in transit requires specialized teams and notification of authorities
Human Factor: Trained shippers reduce accidents, spot leaks before they reach the environment
Worker Safety Laws: Subject to worker right-to-know requirements, listing on workplace hazardous materials inventories
Chemical Control: Listed under major environmental protection statutes as reportable if spilled
Labeling: Legally mandated hazard communication, no exceptions
Compliance Checks: Regular audits force accountability, with fines for unsafe practices
Community Risk: Public disclosure under “right-to-know” gives neighbors warning and involvement in emergency planning
