Lead Nitrate

The molecular formula is Pb (NO3) 2, which is the nitrate of lead. It is a white cubic or monoclinic crystal, hard and shiny, and easy to dissolve in water. It is mainly used in the manufacture of lead salt, mordant, fireworks, etc. It is strictly prohibited to transport with acids, combustibles, organics, reducing agents, spontaneous combustibles, wet combustibles, etc.

Industrial application: used as heat stabilizer in nylon, polyester and thermal imaging paper coatings. Since about 2000, lead nitrate has been used in cyanide alchemy. Lead nitrate is toxic and an oxidant. It is listed as a class 2A carcinogen by the international agency for research on cancer. Therefore, it must be handled and stored with appropriate safety measures to prevent inhalation, accidental eating and skin contact. Because of its danger, the application limitation of lead nitrate is still under continuous consideration.

Function and use:

Glass lining industry is used to make milk yellow pigment. The yellow pigment used in paper industry. The printing and dyeing industry is used as a mordant. Inorganic industry is used to manufacture other lead salts and lead dioxide. The pharmaceutical industry is used to manufacture astringents, etc. Benzene industry is used as tanning agent. The photographic industry is used as a photo sensitizer. The mining industry is used as ore flotation agent. In addition, it is also used as an oxidant for the production of matches, fireworks and explosives, as well as analytical chemical reagents.

Precautions for use:

Hazard introduction

Health hazards: lead and its compounds damage hematopoiesis, nerve, digestive system and kidney. Occupational poisoning is mainly chronic. The main manifestations of the nervous system are neurasthenia syndrome, peripheral neuropathy (more obvious involvement of motor function), and lead toxic encephalopathy in severe cases. The digestive system showed gingival lead line, loss of appetite, nausea, abdominal distension, diarrhea or constipation; Abdominal colic is seen in moderate and severe poisoning cases. Hematopoietic system damage, porphyrin metabolic disorder, anemia and so on. Acute or subacute poisoning may occur after a large amount of short-term exposure, which is similar to severe chronic lead poisoning. Renal damage is often seen in acute subacute poisoning or severe chronic cases.

Danger of combustion and explosion: This product is combustion supporting and irritating.

First aid measures

Skin contact: take off contaminated clothes and wash skin thoroughly with soapy water and clear water.

Eye contact: lift the eyelids and rinse with flowing water or normal saline. See a doctor.

Inhalation: quickly leave the site to a place with fresh air. Keep the respiratory tract unobstructed. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. See a doctor.

Ingestion: drink enough warm water to induce vomiting. See a doctor.

Fire fighting measures

Hazard characteristics: inorganic oxidant. It will react violently and catch fire and explode in case of easy oxide. Explosive mixture can be formed by mixing with reducing agent, organic matter and inflammables such as sulfur, phosphorus or metal powder. It is decomposed by high heat to produce toxic nitrogen oxides.

Harmful combustion products: nitrogen oxide.

Fire extinguishing method: Firefighters must wear gas masks and full body fire fighting clothes to extinguish the fire in the upwind direction. Foggy water and sand. Do not shoot water directly into the melt, so as to avoid serious flowing fire or violent boiling splash.

Leakage emergency treatment

Emergency treatment: isolate the leakage contaminated area and restrict access. It is recommended that emergency treatment personnel wear dust masks (full face masks) and gas suits. Do not touch the leakage directly. Do not let the leakage come into contact with reducing agent, organic matter, inflammables or metal powder.

Small leakage: collect it in a dry, clean and covered container with a clean shovel.

Massive leakage: collect, recycle or transport to waste disposal site for disposal.

Handling and storage:

Precautions for operation: close operation and strengthen ventilation. Operators must receive special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter type dust mask, chemical safety protective glasses, adhesive tape anti-virus clothing and neoprene gloves. Keep away from kindling and heat sources. Smoking is strictly prohibited in the workplace. Keep away from inflammables and combustibles. Avoid dust generation. Avoid contact with reducing agents. Handle with care to prevent damage to packaging and containers. Fire fighting equipment and leakage emergency treatment equipment of corresponding varieties and quantities shall be provided. Empty containers may leave harmful substances.

Storage precautions: store in a cool and ventilated warehouse. Keep away from kindling and heat sources. Package sealing. It shall be stored separately from inflammables, reducing agents and edible chemicals, and mixed storage shall not be allowed. The storage area shall be equipped with appropriate materials to contain leakage.