Lead(II) perchlorate

  • Perchloric acid, lead(2+) salt, trihydrate
Pb(ClO4)2 . 3H2O
white crystals

Registry Numbers and Inventories.
23341 (G)

2ClO4. 3H2O.Pb
Formula mass
Melting point, °C
Vapor density (air=1)
4.82 - 4.86 g/cm3 (25 C)

Hazards and Protection.
Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Regularly check inhibitor levels to maintain peroxide levels below 1%. Store protected from moisture. Store protected from light. Do not break the seal on the container until it is needed. Label the container with the date it was first opened. Long-term storage is not recommended.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with clothing and other combustible materials. Avoid ingestion and inhalation. Store protected from light. Do not allow contact with water. If peroxide formation is suspected, do not open or move container. Avoid contact with air and sunlight. Keep from contact with moist air and steam. Unused chemicals should not be returned to the container. Do not distill since this removes peroxide-inhibitors.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron. Wear appropriate protective clothing to prevent skin exposure.
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Isolate area and deny entry. Provide ventilation. In case of spill, sweep up solid or absorb liquid with inert material, then place into a biohazard container. Wear protective equipment. Place under an inert atmosphere. Do not get water inside containers.
Stable under normal shipping and handling conditions. On long term storage, substances with similar functional groups form explosive peroxides. Explosive peroxides may form on concentration. Tends to form explosive peroxides; especially when anhydrous. Peroxide formation may occur in containers that have been opened and remain in storage.
Oxidizing agents.
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, lead/lead oxides, chloride fumes.

Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with combustible materials may cause a fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water with caution and in flooding amounts. May form explosive peroxides. Extinguishing media: Use agent most appropriate to extinguish fire. Do NOT get water inside containers. Contact professional fire-fighters immediately. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
These substances will accelerate burning when involved in a fire.
May explode from heat or contamination. May react explosively with hydrocarbons (fuels). May ignite combustibles.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Exposure limit(s)
50 µg/m3 PEL
G-A3, I-2B, CP65
Exposure effects
Chronic exposure to lead may result in plumbism which is characterized by lead line in gum, headache, muscle weakness, mental changes,
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. Ingestion of lead compounds can cause toxic effects in the blood-forming organs, kidneys and central nervous system, Ingestion of lead compounds can produce symptoms of lead poisoning.
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
May cause skin irritation. The toxicological properties of this material have not been fully investigated.
May cause eye irritation. The toxicological properties of this material have not been fully investigated.

First aid
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

UN number
Response guide
Hazard class
Packing Group