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Product Name: Mercurous Acetate
Synonyms: Mercury(I) Acetate, Dimeric mercury acetate
CAS Number: 1600-27-7
Recommended Use: Laboratory reagent, research chemical
Manufacturer: Information available from chemical supplier
Contact Info: Emergency phone number available from supplier label
Formula: C4H6Hg2O4
Molecular Weight: 441.19 g/mol
GHS Classification: Acute Toxicity (Oral, Inhalation, Dermal), Specific Target Organ Toxicity — Repeated Exposure, Hazardous to Aquatic Environment
Signal Word: Danger
Hazard Statements: Toxic if swallowed, inhaled or in contact with skin. Causes damage to organs through prolonged or repeated exposure. Very toxic to aquatic life with long lasting effects.
Pictograms: Skull and crossbones, Environment, Health hazard
Precautionary Statements: Avoid breathing dust, fumes or vapors. Wear protective gloves, clothing, eye and face protection. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Avoid release to the environment.
Mercurous Acetate: 95–100%
CAS Number: 1600-27-7
Impurities: Trace amounts of other mercury compounds, acetic acid derivatives
Inhalation: Move to fresh air. Seek medical attention immediately. If breathing stops, perform artificial respiration.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water for at least fifteen minutes. Seek medical help.
Eye Contact: Rinse immediately with plenty of water, holding eyelids apart, for at least fifteen minutes. Get medical attention promptly.
Ingestion: Do not induce vomiting. Rinse mouth out with water. Never give anything by mouth to an unconscious person. Seek medical care quickly.
Most Important Symptoms: Acute exposure may cause nausea, vomiting, abdominal pain, tremors, kidney damage, central nervous system symptoms, and in severe cases, death. Chronic exposure increases risk of mercury poisoning, neurological symptoms, and kidney impairment.
Notes for Physician: Symptoms of mercury poisoning may be delayed. Treat symptomatically and supportively.
Suitable Fire Extinguishing Media: Water spray, carbon dioxide, dry chemical powder, foam
Unsuitable Media: Do not use direct water stream on product; may spread material
Hazardous Combustion Products: Mercury vapors, carbon oxides
Protective Equipment: Firefighters should wear full protective gear and self-contained breathing apparatus
Specific Hazards: Mercury vapor is highly toxic. Containers may explode in heat.
Advice for Firefighters: Cool exposed containers with water spray. Avoid breathing fumes or vapors. Evacuate area if necessary.
Personal Precautions: Avoid skin and eye contact. Avoid breathing dust. Wear protective gloves, lab coat, eye/face protection, and suitable respiratory protection.
Environmental Precautions: Prevent further leakage or spillage. Do not allow to enter drains or surface water. Notify environmental authorities in case of significant discharge.
Cleanup Methods: Use non-sparking tools and equipment. Collect spillage in a suitable, closed, labeled container for disposal. Absorb residues with inert material such as sand or vermiculite. Ventilate area well. Wash area with copious amounts of water, avoiding direct runoff to drains.
Decontamination: Use mercury-absorbing materials if available. Dispose of all cleanup materials as hazardous waste.
Precautions for Safe Handling: Avoid contact with skin, eyes and clothing. Do not breathe dust or fumes. Use in chemical fume hood. Practice good industrial hygiene. Keep away from strong acids, bases, oxidizers.
Safe Storage Conditions: Store in tightly closed container. Store in a cool, dry, well-ventilated place. Keep away from sunlight and sources of ignition. Store separately from food and incompatible materials. Maintain secondary containment to prevent environmental contamination.
Incompatibilities: Acids, bases, oxidizing agents, sulfur, ammonia compounds
Exposure Limits: OSHA PEL (as mercury): 0.1 mg/m³ (ceiling); ACGIH TLV: 0.025 mg/m³ (TWA, as Hg)
Engineering Controls: Use only in a chemical fume hood or with adequate exhaust ventilation. Keep work area free from contaminants and confined residues.
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), lab coat, long sleeves, safety goggles or face shield, and approved respirator if exposure limits may be exceeded.
Hygiene Measures: Remove contaminated clothing promptly. Wash hands and face thoroughly after handling. No eating, drinking or smoking in work area.
Environmental Controls: Prevent spills and leaks. Collect waste as hazardous material.
Appearance: White to pale yellow crystalline powder
Odor: Slight acetic acid smell
Odor Threshold: Not available
pH: Slightly acidic (in aqueous suspension)
Melting Point: Decomposes before melting
Boiling Point: Not applicable; decomposes
Flash Point: Not flammable
Evaporation Rate: Not available
Flammability: Not combustible
Vapor Pressure: Negligible at room temperature
Solubility: Slightly soluble in water, moderately soluble in ethanol
Partition Coefficient (n-octanol/water): Not available
Specific Gravity: 4.6 (approximate)
Decomposition Temperature: >200°C
Viscosity: Not applicable
Chemical Stability: Stable under normal temperatures and storage conditions
Reactivity: Reacts with strong acids or bases; may release toxic fumes
Conditions to Avoid: Heat, moisture, incompatible substances, sunlight
Incompatible Materials: Strong acids, strong bases, oxidizers, ammonia, sulfur compounds
Hazardous Decomposition Products: Mercury vapors, acetic acid, carbon oxides
Hazardous Polymerization: Will not occur
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Toxic following ingestion, inhalation, or contact with skin. LD50 (oral, rat): 71 mg/kg. High risk of mercury poisoning.
Chronic Toxicity: Prolonged exposure may cause neurological damage, tremors, personality changes, kidney damage. Repeated contact may cause skin rashes, mouth ulcers, gum inflammation.
Symptoms: Nausea, vomiting, metallic taste, abdominal pain, weakness, tremors, behavioral changes, kidney dysfunction
Carcinogenicity: Mercury and some mercury compounds are classified as possible carcinogens by IARC.
Mutagenicity: Evidence of genetic toxicity in some animal studies
Reproductive Toxicity: Mercury compounds can harm developing fetus
Ecotoxicity: Very toxic to aquatic life. Bioaccumulates in aquatic organisms.
Persistence and Degradability: Highly persistent in environment; mercury ions remain for years
Mobility in Soil: Moderately mobile. Can leach to ground and surface waters.
Bioaccumulation: Significant potential for bioaccumulation and biomagnification in food chain
Other Adverse Effects: Mercury is toxic to most living organisms, impairs reproduction in birds, fish and mammals.
Waste Disposal Methods: Dispose as hazardous waste according to federal, state and local regulations. Do not dispose into the environment or down the drain.
Container Disposal: Triple-rinse empty containers, then offer for hazardous material recycling. Do not reuse containers.
Additional Information: All wastes should be managed in closed, labeled, and secure containers. Consult local environmental authorities for mercury waste management recommendations.
UN Number: UN1620
Proper Shipping Name: Mercury compound, n.o.s. (Mercurous acetate)
Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Labels Required: Toxic, Environmentally Hazardous
Marine Pollutant: Yes
Special Transport Precautions: Transport in tightly closed, corrosion-resistant containers. Protect against physical damage. Prevent from tipping, dropping, or exposure to heat. Follow regulations from DOT, IATA, and IMDG as relevant.
TSCA (USA): Listed
SARA Title III (Sections 302/304, 313): Mercury compounds subject to reporting
RCRA (Hazardous Waste): Mercury waste characteristic D009
OSHA: Toxic substance, workplace exposure limits apply
State Regulations: California Proposition 65 (developmental and reproductive toxicity warning)
EU: Classified as dangerous under EC Regulations
International Regulations: Subject to control under the Minamata Convention on Mercury
