Lead (II) nitrate 99.5% or Lead nitrate or Plumbous nitrate or Dilead dinitrate or Nitric acid lead (II) salt

Product Overview & Quality

Product Name: Lead (II) nitrate 99.5% or Lead nitrate or Plumbous nitrate or Dilead dinitrate or Nitric acid lead (II) salt
Brand: QReC (Product Code: QR-L2019-1-0500)
Grade: Analytical Reagent High Purity Grade (AR Grade) featuring an exceptional certified chemical assay of not less than 99.5 percent. Manufactured and multi-recrystallized under strict QReC global laboratory specifications to maintain stoichiometric crystalline purity. Rigorously tested to enforce minimal water-insoluble matter (strictly below 0.005 percent), along with ultra-low ppm limits of chloride, sulfate, ammonium, and extraneous heavy metals (such as iron, copper, zinc, calcium, magnesium, sodium, potassium, and arsenic). Clear, uniform, dense crystalline solid dissolving completely in water to yield crystal-clear, sediment-free solutions. Packaged in a heavy-duty, corrosion-resistant polymer container equipped with a hermetic seal to prevent powder escape and toxic heavy metal contamination.
Physical Properties: Colorless translucent crystals or fine white crystalline powder. Heavy and dense. Odorless. Thermodynamically stable in ambient air. Non-combustible solid itself, but functions as a potent inorganic oxidizing agent (Category 2) capable of accelerating the combustion of combustible substances. Undergoes decrepitation (audible crackling fragmentation) upon heating, decomposing thermally into toxic reddish-brown nitrogen dioxide gas, oxygen, and leaving a yellowish lead (II) oxide residue. Aqueous solutions are mildly acidic (pH approximately 3.5 to 4.5 for a 5 percent aqueous solution at room temperature).
Solubility: Readily and highly soluble in water (approximately 52 to 54 grams per 100 milliliters at 20 degrees Celsius; dissolution is a pronounced endothermic process, with solubility escalating dramatically to over 125 grams per 100 milliliters in boiling water); freely soluble in aqueous caustic alkalis and glycerol; slightly soluble in ethanol and methanol; practically insoluble in concentrated nitric acid (undergoing common-ion precipitation).
Key Use: Universally utilized as the primary water-soluble inorganic chemical precursor for synthesizing ultra-pure lead inorganic compounds and salts (such as lead halides, lead carbonate, lead chromate, and lead sulfate) in preparative inorganic chemistry. Extensively applied as a high-purity precursor in materials science for synthesizing hybrid lead halide perovskites used in high-efficiency Perovskite Solar Cells (PSCs) and optoelectronic light-emitting diodes (LEDs). Serves as a primary analytical reagent and volumetric standard in precipitation titrations and complexometric assays for quantifying sulfate, phosphate, and halide anions. Heavily used as a mordant in textile dyeing, and as a biological contrast stain in transmission electron microscopy (TEM) sample preparations. Functions as an oxidizing and flotation regulator in gold cyanidation extraction hydrometallurgy and polymer curing formulations.

Safety & Hazards (Oxidizer, Cumulative Neurotoxin, Carcinogen, Reproductive Hazard & Aquatic Toxicity)

Classification: May intensify fire; oxidizer (Oxidizing Solid Category 2). May damage fertility or the unborn child (Reproductive Toxicity Category 1A). Suspected of causing cancer (Carcinogenicity Category 2). Causes damage to organs (Central nervous system, kidneys, blood, cardiovascular system) through prolonged or repeated exposure. Harmful if swallowed or inhaled. Causes serious eye damage. Very toxic to aquatic life with long lasting effects.
Health Risks: Lead is a persistent, bioaccumulative heavy metal poison that disrupts enzymatic processes and cellular respiration. Direct ocular contact causes severe caustic stinging, conjunctival ulceration, and risk of irreversible corneal damage. Dermal contact produces localized irritation, dryness, and rapid systemic absorption through broken skin. Inhalation of airborne dust causes respiratory irritation and rapid pulmonary absorption into systemic circulation. Critical Cumulative Toxicity: Chronic occupational absorption results in severe systemic lead poisoning (saturnism), inducing irreversible central nervous system degradation, cognitive impairment, peripheral motor neuropathy (wrist drop), microcytic anemia, chronic nephropathy, hypertension, male/female infertility, and spontaneous abortion or severe congenital fetal deformities. Acute ingestion produces severe metallic taste, violent abdominal cramping (lead colic), nausea, vomiting, obstinate constipation or diarrhea, encephalopathy, convulsions, and metabolic collapse.
First Aid Measures: Immediately flush affected eyes with an abundant stream of clean flowing water for at least 15 to 20 minutes while stripping contaminated clothing; remove contact lenses promptly and seek immediate emergency medical care. Wash exposed skin thoroughly with soap and water. In case of dust inhalation, rapidly relocate the victim to fresh air. If accidentally swallowed, rinse mouth thoroughly, administer dilute sodium sulfate or magnesium sulfate solution (to precipitate toxic lead as insoluble lead sulfate) or fresh water, and seek immediate, urgent emergency medical attention (specialist heavy metal chelation therapy).

Handling & Storage

Storage: Dangerous Oxidizer, Cumulative Heavy Metal Toxin, and Severe Aquatic Pollutant. Must be preserved in its original, tightly closed QReC container placed in secondary containment within a dedicated, locked hazardous chemical storage cabinet. Store in a clean, strictly dry, cool, and well-ventilated dedicated chemical store at controlled temperatures (below 25 degrees Celsius), sheltered from thermal sources and direct sunlight. Keep strictly segregated from organic chemicals, flammable solvents, strong reducing agents, finely powdered metals, sulfur, phosphorus, strong mineral acids, ammonium compounds, and foodstuffs.
Precautions: Full specialized PPE is mandatory, including heavy chemical-resistant nitrile gloves, splash-proof safety goggles, a certified particulate dust respirator (HEPA / N100 / P100 rated), and a protective lab coat. “Mandatory Handling Mandate: Dispense, weigh, and handle all lead nitrate powders exclusively and strictly within a certified, properly functioning laboratory fume hood to prevent airborne particulate dispersal and chronic inhalation. Pregnant or nursing personnel are strictly prohibited from handling this substance.” Never discharge lead washings or residues into municipal sewers; collect in dedicated heavy-metal toxic waste streams for certified regulatory disposal.