Product Name: Lead Naphthenate
Chemical Family: Metal carboxylate
Synonyms: Lead naphthenate solution, Lead naphtheneate
CAS Number: 61790-14-5
Recommended Use: Drier for paints and coatings
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GHS Classification: Acute toxicity (oral, dermal, inhalation); Reproductive toxicity; Specific target organ toxicity (repeated exposure); Environmental hazard: very toxic to aquatic life
Signal Word: Danger
Hazard Statements: Highly toxic if swallowed, inhaled, or in contact with skin. Causes damage to organs through prolonged or repeated exposure. Suspected of causing cancer. Suspected of causing genetic defects. Very toxic to aquatic life with long lasting effects.
Pictograms: Skull and crossbones, Health hazard, Environment
Precautionary Statements: Do not breathe dust, fume, gas, mist, vapors, spray. Wear protective gloves, protective clothing, eye protection, face protection. Avoid contact with eyes, skin, and clothing. Do not eat, drink, or smoke when using this product. Avoid release to the environment. Get immediate medical advice if you feel unwell.
Chemical Name: Lead naphthenate
CAS Number: 61790-14-5
Concentration: Typically 30-40% by weight in mineral spirits
Other Components: Solvent naphtha (mineral spirits, 60-70%)
Impurities/Additives: May contain trace heavy metals due to source material
Inhalation: Remove individual to fresh air. Seek medical attention immediately. Monitor for respiratory distress and provide oxygen if needed.
Skin Contact: Take off contaminated clothing. Wash affected area with soap and water for at least 15 minutes. Get medical attention for irritation or symptoms.
Eye Contact: Rinse thoroughly with water for at least 15 minutes, lifting upper and lower eyelids occasionally. Remove contact lenses if present. Seek medical attention as soon as possible.
Ingestion: Do not induce vomiting. Rinse mouth with water if individual can swallow. Never give anything by mouth to an unconscious person. Get immediate medical help.
Most Important Symptoms: Abdominal pain, headache, vomiting, muscle weakness, convulsions, and in severe cases, unconsciousness and organ failure.
Notes to Physician: Treat symptomatically and monitor for signs of lead poisoning. Chelation therapy may be indicated for high blood lead levels.
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide (CO2), or water spray (do not use water jet).
Hazardous Combustion Products: Fumes containing lead compounds, carbon monoxide, carbon dioxide, smoke, and irritating vapors.
Special Protective Equipment: Firefighters must wear self-contained breathing apparatus and full protective gear to protect from toxic fumes.
Fire Hazards: Containers may rupture under fire conditions. Runoff may cause environmental contamination.
Advice for Firefighters: Move containers from fire area if it can be done safely. Cool tanks with water spray from a safe distance to prevent pressure build-up.
Personal Precautions: Use appropriate personal protective equipment including gloves, protective clothing, and respiratory protection to prevent contact and inhalation. Remove sources of ignition and ventilate area.
Environmental Precautions: Prevent entry into sewers, surface waters, or soil. Notify authorities in accordance with local requirements.
Methods for Containment: Contain spill to the smallest possible area using non-combustible absorbent materials such as sand or earth.
Methods for Cleanup: Gather absorbed material into properly labeled, sealed containers for approved disposal. Clean residue with detergent and water, avoiding runoff into drains.
Handling: Use only in ventilated areas. Avoid breathing vapor or mist. Avoid contact with skin, eyes, or clothing. Do not eat, drink, or smoke during use. Wash hands thoroughly after handling.
Storage: Store in tightly closed containers in a cool, dry, well-ventilated area away from food, beverages, incompatible materials (strong oxidizers, acids), and out of children's reach. Protect from direct sunlight and sources of ignition. Keep away from drains and groundwater.
Incompatible Materials: Strong acids, bases, oxidizers, reducing agents.
Exposure Limits: OSHA PEL for lead: 0.05 mg/m³ TWA; ACGIH TLV for inorganic lead: 0.05 mg/m³ TWA.
Engineering Controls: Use local exhaust ventilation or other engineering controls to maintain airborne levels below recommended exposure limits.
Eye Protection: Wear chemical safety goggles or face shield to prevent eye contact.
Skin Protection: Wear impervious gloves (such as neoprene or nitrile), long-sleeved clothing, and aprons where splash risk exists.
Respiratory Protection: Use NIOSH-approved air-purifying or supplied-air respirator in poorly ventilated areas or where exposures exceed limits.
Hygiene Measures: Wash hands, face, and exposed skin after handling. Do not eat, drink, or smoke while handling material.
Appearance: Viscous dark brown to amber liquid
Odor: Hydrocarbon, solvent-like
Odor Threshold: Not established
pH: Not applicable
Melting Point/Freezing Point: Not determined
Boiling Point/Range: 150-260 °C (solvent component)
Flash Point: 38–63°C (100–145°F) (closed cup, varies with solvent blend)
Evaporation Rate: Slower than ether
Flammability: May form flammable/explosive vapor–air mixtures
Vapor Pressure: 1–3 mmHg at 20°C
Relative Density: 1.3–1.4 (water = 1)
Solubility in Water: Insoluble
Partition Coefficient: Not available
Auto-ignition Temperature: >200°C
Decomposition Temperature: Not available
Viscosity: Variable, depends on formulation
Chemical Stability: Stable under recommended storage conditions.
Reactivity: Reacts with strong oxidizing agents; violent reaction possible.
Conditions to Avoid: Excessive heat, sparks, open flames, direct sunlight, incompatible materials, containers without proper venting.
Incompatible Materials: Strong acids, oxidizers, reducing agents
Hazardous Decomposition Products: Lead oxides, carbon monoxide, carbon dioxide, other undetermined toxic fumes
Possibility of Hazardous Reactions: Not expected under normal conditions, but formation of hazardous decomposition products possible when heated.
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: Lead naphthenate is highly toxic; may cause abdominal pain, vomiting, diarrhea, headache, and potentially fatal systemic effects if ingested or absorbed.
Chronic Toxicity: Long-term exposure can result in lead poisoning; symptoms include anemia, kidney damage, reproductive and developmental toxicity, neurological effects, and potential carcinogenicity.
Carcinogenicity: Lead compounds are classified as probable human carcinogens by IARC and NTP.
Mutagenicity and Teratogenicity: Evidence of genetic defects and danger to developing fetus from exposure.
Symptoms of Exposure: Joint and muscle pain, weakness, mood changes, fertility issues, abdominal colic, high blood pressure, cognitive impairment over time.
Ecotoxicity: Lead naphthenate is extremely toxic to fish and aquatic organisms. Persistence and accumulation lead to long-term effects in the environment, particularly in sediments.
Mobility: Low mobility in soil due to binding with particles.
Persistence and Degradability: Persists in the environment; lead does not degrade and accumulates in living tissue and soil.
Bioaccumulation Potential: High; lead accumulates up the food chain, affecting top predators and potentially human populations through water and food.
Other Adverse Effects: Significant impacts on ecosystem health, reproductive health in wildlife, long-term toxicity.
Waste Disposal: Dispose of as hazardous waste according to federal, state, and local regulations. Do not discharge into drains, watercourses, or the environment.
Container Disposal: Thoroughly empty and triple rinse containers before disposal. Containers may retain hazardous residues and must be handled as such.
Special Precautions: Label waste containers with proper hazard identification. Use licensed hazardous waste disposal contractor.
EPA Hazardous Waste Number: D008 (lead-containing waste)
UN Number: UN3082
UN Proper Shipping Name: Environmentally Hazardous Substance, Liquid, N.O.S. (contains lead naphthenate)
Transport Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Environmental Hazards: Marine pollutant
Transport Labels: Class 9, Environmentally hazardous substance
Special Precautions for User: Avoid spills and releases during transport. Comply with national and international shipment regulations.
OSHA: Regulated as a hazardous substance; respiratory and skin exposure must be controlled.
EPA: Listed under Toxic Substances Control Act (TSCA); reportable quantity applies under CERCLA for releases (RQ for lead = 10 lbs). Hazardous waste regulation under RCRA.
SARA Title III: Section 313 (Toxic Chemical Release Inventory) – Lead compounds are subject to reporting.
California Proposition 65: Listed as a substance known to cause cancer, birth defects, or other reproductive harm.
Other Regulations: Subject to workplace exposure limits set by ACGIH, and requirements for safety data communication in accordance with GHS standards. Follow all national and local requirements for storage, handling, disposal, and workplace safety.
