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Product Name: Mercury Standard Solution for Atomic Absorption Spectroscopy
Synonyms: Mercury Calibration Standard, Hg Standard Solution
Product Code: Varies by supplier
Manufacturer: Supplier-specific laboratory chemical manufacturer
Emergency Telephone: Contact manufacturer’s emergency response line
Recommended Use: Laboratory reagent for calibration of AAS instruments
Restrictions on Use: Reserved for professional, trained personnel use in analytical settings
Classification: Acute Toxicity—Oral (Category 2); Acute Toxicity—Dermal (Category 2); Acute Toxicity—Inhalation (Category 2); Chronic Aquatic Hazard (Category 1)
Label Elements: Skull and crossbones (GHS06), Environment pictogram (GHS09)
Hazard Statements: Fatal if swallowed, fatal in contact with skin, fatal if inhaled, very toxic to aquatic life with long-lasting effects
Precautionary Statements: Avoid all contact with skin and eyes; Do not breathe mist or vapors; Use only in fume hood with proper ventilation; Keep away from food and drink; Wear surgical gloves, protective eyewear, and certified lab coats
Other Hazards: Mercury vapors pose significant risk even at low concentrations; Spilled solution may contaminate surfaces and air
Chemical Name: Mercury (II) nitrate solution, diluted in deionized water
Common Name: Mercury Standard for AAS
Concentration: Usually 1000 mg/L Hg, varies by standard
CAS Number: 7439-97-6 (elemental mercury), 10045-94-0 (mercury nitrate)
EC Number: 231-106-7 (elemental mercury), 233-113-0 (mercury nitrate)
Deionized Water: Solvent
Other Ingredients: Trace amounts of stabilizers or acids to prevent mercury precipitation, specifics supplier-dependent
Inhalation: Move victim to fresh air without delay; administer oxygen if breathing difficult; seek emergency medical evaluation
Skin Contact: Immediately flush with running water for at least 15 minutes; remove contaminated clothing; use soap to remove dissolved mercury residues
Eye Contact: Rinse thoroughly with plenty of water for at least 15 minutes, lifting eyelids; urgent medical assessment essential
Ingestion: Rinse mouth; do not induce vomiting; seek immediate advanced medical attention (call emergency services); observe for neurological symptoms
Most Acute Symptoms: Nausea, vomiting, headache, metallic taste, coughing, neurological disturbances
Special Notes: Medical professionals may use chelation therapy in severe exposure cases; always bring MSDS with patient for clinical reference
Extinguishing Media: Use dry chemical, carbon dioxide, or alcohol-resistant foam; water spray permitted for cooling but not for direct firefighting
Special Hazards: Mercury vaporizes at elevated temperature and is extremely toxic through inhalation; decomposition may produce hazardous fumes including nitrogen oxides and mercury vapor
Protective Equipment: Self-contained breathing apparatus (SCBA), full flame-resistant turnout gear
Advice for Firefighters: Prevent runoff from entering drains, bodies of water, or soil; evacuate upwind if mercury vapor release is suspected
Personal Precautions: Evacuate area except for trained personnel; use gloves, face shield, and suitable protective outerwear; avoid breathing vapors
Environmental Precautions: Prevent spillage from entering drains, surface water, or sewage; mercury contaminates persistently in aquatic systems
Cleanup Methods: Ventilate area; gather liquid with mercury-specific absorbent pads; avoid use of household vacuum cleaners since mercury vapors can be released; place collected material in sealed, labeled containers for hazardous waste disposal
Reporting: Notify regulatory authorities in event of significant release or environmental contamination
Handling: Use in fume hood or ventilated area; avoid splashing; always wear chemical-resistant gloves and certified goggles; never eat, drink, or use tobacco in handling areas
Storage: Keep containers tightly closed, labeled clearly, and stored upright in a corrosive-resistant secondary containment tray; store away from incompatible substances (acids, ammonia, reducing agents)
Other Precautions: Secure stocks in locked chemical storage with access controlled to lab personnel; regularly check for leaks or deteriorating labels
Exposure Limits: OSHA PEL: 0.1 mg/m3 (as Hg), ACGIH TLV: 0.025 mg/m3 (as Hg, time-weighted average)
Engineering Controls: Work in certified fume hood; maintain local exhaust ventilation; use spill containment trays
Personal Protective Equipment: Chemical splash-resistant goggles; impervious gloves (nitrile, neoprene); impermeable lab coat; face shield for potential splashes
Respiratory Protection: Use NIOSH/MSHA approved respirators for mercury vapor if exposure risk exists outside fume hood
Hygiene Measures: Remove contaminated clothing after handling; wash hands and face before breaks and at end of shift; prohibit jewelry which may trap mercury against skin
Appearance: Clear, colorless to faintly yellow liquid
Odor: Odorless
pH: Slightly acidic depending on matrix
Melting Point/Range: Not applicable (aqueous solution)
Boiling Point: Similar to water (100°C), but mercury can volatilize at much lower temperatures
Flash Point: Not applicable (water-based solution)
Evaporation Rate: Comparable to water
Vapor Pressure: Negligible for solution, but hazardous for pure mercury if released
Solubility: Complete in water
Partition Coefficient: Not determined
Density: Approximately 1.0-1.1 g/cm³
Viscosity: Close to water
Chemical Stability: Stable under normal room temperature and recommended storage conditions
Reactivity: Reacts with strong acids, ammonia, and metals to produce toxic or flammable gases
Conditions to Avoid: High temperatures, exposure to incompatible chemicals, and unsealed containers
Hazardous Decomposition Products: Mercury vapors, nitrogen oxides (if nitric acid is present as stabilizer)
Incompatible Materials: Strong acids, bases, reducing agents, organic materials, metal powders
Acute Toxicity: Symptoms include headaches, nausea, vomiting, metallic taste, respiratory distress, and neurological impact
Chronic Toxicity: Potential for irreversible kidney injury and neurological impairment with cumulative exposure; documented teratogenic and mutagenic effects
Routes of Exposure: Inhalation, skin absorption, ingestion
Carcinogenicity: Not classified as carcinogenic by IARC, but chronic exposure poses significant health risks
Other Effects: Hypersalivation, tremors, memory disturbance, emotional lability, potential for fatal intoxication at higher doses
Ecotoxicity: Highly toxic to aquatic organisms, persistent bioaccumulation possible; significant pollution risk at even very low concentrations
Persistence and Degradability: Mercury compounds are not readily biodegradable; long-term environmental hazard
Bioaccumulation Potential: Considerable, with mercury cycling through aquatic food webs and concentrating in predatory species
Mobility in Soil: Mercury may migrate through soil to groundwater, especially in acidic environments
Other Adverse Effects: Recognized as one of the most hazardous persistent environmental toxins; linked to population declines in aquatic and terrestrial organisms
Disposal Methods: Collected or expired standards and mercury-containing waste should be sealed in labeled, airtight containers and delivered to licensed hazardous chemical waste disposal contractors; never pour down drain or into regular trash
Special Precautions: Avoid release to environment; be sure all handling and transfer procedures occur in ventilated spaces; treat contaminated materials (spills, absorbents) as hazardous mercury waste
Hazardous Waste Code: U151 (EPA code for mercury-containing waste in United States)
UN Number: UN2025 (for mercury compounds in solution, if applicable)
Proper Shipping Name: Mercury compound, aqueous solution
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions: Ship in approved containers with compatible absorbent; carry transport emergency cards and notify carriers of mercury hazard
Transport Regulations: Subject to DOT, IATA, IMDG, and ADR requirements for toxic chemicals
EPA Regulations: Mercury listed as hazardous waste under Resource Conservation and Recovery Act (RCRA); subject to Toxic Substances Control Act (TSCA)
OSHA Regulations: Covered under OSHA Hazard Communication Standard (29 CFR 1910.1200); strict labeling and training mandated
State/Local Regulations: Additional restrictions may apply based on region; labs must check for site-specific rules
SARA Title III: Reportable under SARA Sections 302, 304, and 313
Globally Harmonized System (GHS): Classified as “Acute Toxicity (Oral, Inhalation, Dermal) Category 2”, “Chronic Aquatic Toxicity Category 1”
Other International: Listed as a pollutant of concern under the Minamata Convention on Mercury; numerous countries restrict manufacture, import, export, and use
