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Chemical Name: Methoxyethylmercury acetate
Synonyms: Acetic acid, methoxyethylmercury salt
CAS Number: 151-38-2
Recommended Use: Chemical synthesis, research applications
Manufacturer Information: Refer to supplier contact details on packaging label
Emergency Contact Telephone: Region-specific poison control center or emergency services
Classification: Acute toxicity (oral, dermal, inhalation), specific target organ toxicity, environmental hazard
Label Elements: Pictograms for acute toxicity, environmental hazard; Signal Word: Danger
Hazard Statements: Fatal if swallowed. Fatal if inhaled. Causes damage to organs through prolonged or repeated exposure. Very toxic to aquatic life with long-lasting effects.
Precautionary Statements: Avoid all contact; do not breathe dust, fume, vapor. Use personal protective equipment. Avoid release to the environment.
Chemical Identity: Methoxyethylmercury acetate
CAS Number: 151-38-2
EC Number: 205-792-7
Concentration: > 98% pure substance
Other Components: Product typically supplied as a single-component chemical, no major impurities present based on certificate of analysis
Inhalation: Move person to fresh air. Keep at rest. Seek immediate medical attention. Artificial respiration may be required.
Skin Contact: Remove contaminated clothing and wash skin thoroughly with soap and water for several minutes. Seek medical assessment.
Eye Contact: Rinse eyes with water for a minimum of 15 minutes, keeping eyelids apart. Remove contact lenses if present and easy to do.
Ingestion: Do not induce vomiting. Rinse mouth with water and seek emergency medical assistance immediately.
Special Advice for Physicians: Treat for mercury poisoning. Consider chelation therapy.
Suitable Extinguishing Media: Use dry chemical, foam, or carbon dioxide. Use water spray to cool exposed surfaces only.
Unsuitable Media: Do not use water jet, which may spread material or contamination.
Special Hazards: Heating may produce toxic mercury vapors and oxides of mercury. Combustion by-products may be hazardous.
Protective Equipment: Full protective suit and self-contained breathing apparatus for responders. Remove personnel from area, evacuate downwind.
Fire-Fighting Precautions: Avoid runoff from firefighting efforts entering drains or environment.
Personal Precautions: Evacuate area. Avoid inhalation, skin, and eye contact. Wear full protective clothing, including gloves and eye/face protection.
Environmental Precautions: Prevent further leakage or spillage if safe to do so. Avoid discharge into drains, water courses, or onto the ground.
Methods for Clean-up: Collect spilled material using mercury-absorbent pads or inert absorbent (sand, earth). Place in suitable sealed, labeled container for disposal. Provide adequate ventilation.
Decontamination: Wash area of spill with mercury decontaminant solution or ample water after cleanup is complete.
Disposal: Dispose of collected material as hazardous waste under all local and national regulations.
Precautions for Safe Handling: Handle in well-ventilated area, preferably in fume hood. Avoid formation of dust and aerosols. Avoid contact with eyes, skin, and clothing. Do not eat, drink, or smoke while using.
Conditions for Safe Storage: Store in tightly closed, clearly labeled chemical-resistant containers. Keep away from sources of ignition, incompatible substances, acids, and foodstuffs. Store in cool, dry, controlled access environment.
Storage Incompatibilities: Strong acids, oxidizing agents, and halogens.
Handling Advice: Train personnel on hazards of mercury compounds and proper spill response.
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep exposure as low as possible. Work in fume hood whenever possible.
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile or butyl rubber), lab coat, long pants, closed shoes. Wear safety goggles or face shield. Use NIOSH-approved respirator if risk of airborne exposure exists.
Exposure Limits: OSHA PEL 0.1 mg/m³ (as mercury vapor, TWA). ACGIH TLV 0.025 mg/m³ (as mercury, TWA).
Hygiene Measures: Wash hands and face thoroughly after handling. Remove contaminated clothing before entering other work areas.
Appearance: White to off-white crystalline powder
Odor: Odorless
Melting Point: Decomposes before melting (no reliable melting point)
Boiling Point: Decomposes without boiling
Solubility: Moderately soluble in water; soluble in organic solvents such as ethanol and acetone
Vapor Pressure: Low under standard conditions
Relative Density: Not readily available; higher than water due to mercury content
Partition Coefficient (log Kow): Data not available
pH: Not applicable for solid
Percent Volatile by Volume: Negligible
Chemical Stability: Stable under recommended storage and handling conditions. Sensitive to light and heat, which may hasten decomposition.
Reactivity: Reacts vigorously with strong acids, oxidizers. May form toxic products if heated.
Decomposition Products: Mercury vapor, organic by-products, acetic acid vapors
Incompatible Materials: Strong acids, bases, oxidizing agents, ammonia compounds
Hazardous Polymerization: No risk of hazardous polymerization under normal use
Acute Toxicity: Highly toxic by ingestion, inhalation, and skin contact. LD50 (oral, rat): 15-20 mg/kg. Inhalation may be rapidly fatal.
Chronic Toxicity: Chronic exposure linked to neurological, renal, immunological, and reproductive harm. Mercury bioaccumulates in tissues.
Symptoms of Exposure: Tremors, memory loss, mood changes, nausea, vomiting, abdominal pain, renal dysfunction, skin rashes.
Carcinogenicity: No human data available, but not classifiable as carcinogenic to humans; mercury compounds under ongoing review.
Sensitization: May cause allergic skin reaction.
Ecotoxicity: Extremely toxic to aquatic organisms with potential for long-term adverse effects in the aquatic environment. Mercury compounds persist and bioaccumulate in food chains.
Persistence and Degradability: Not readily biodegradable; environmental persistence is high.
Bioaccumulation: Bioaccumulates in aquatic organisms and can magnify in food webs leading to ecological damage.
Mobility in Soil: May migrate through soils and contaminate groundwater.
Other Adverse Effects: Even small releases have severe ecosystem impacts.
Waste Treatment Methods: Handle material and contaminated containers as hazardous waste. Incinerate under controlled conditions only in facilities with appropriate mercury controls.
Contaminated Packaging: Dispose of containers as hazardous waste. Do not reuse containers for any purpose.
Special Precautions: Comply with local authority regulations, do not dump in drains or environment. Label all waste containers accurately.
UN Number: UN1624 (mercury compounds, organic, n.o.s.)
Proper Shipping Name: Mercury compound, organic, solid, n.o.s. (contains methoxyethylmercury acetate)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Labels Required: Toxic, Marine Pollutant
Special Precautions: Keep packaging intact during transport, avoid transport with food or animal feed. Comply with IMDG, IATA, and DOT rules for shipping toxic and environmentally hazardous materials.
U.S. Regulations: Listed as hazardous substance under CERCLA, SARA Title III, OSHA; reportable quantity (RQ) for mercury compounds is typically 1 pound or less. Subject to TSCA requirements for inventory and handling.
Europe: Controlled under REACH Regulation and CLP; inclusion in Annex XVII restrictions for mercury compounds.
International Standards: IARC, WHO, and UNECE classify organic mercury compounds as high-priority pollutants.
Other Regulations: Country-level controls may mandate special monitoring, worker health surveillance, training, and waste tracking. Always verify local requirements.
