| Formula / Notation | Pb |
|---|---|
| CAS Number | 7439-92-1 |
| Molecular Weight | 207.2 |
| Melting Point | 327.5 |
| Boiling Point | 1749.0 |
| Density | 11.34 |
| Solubility | Insoluble in water |
| Appearance | Soft, dense, bluish-grey metal |
| Also Known As | Pb, plumbum, lead metal |
| Category | Elements |
What is Lead?
Lead is a soft, dense, grey post-transition metal, atomic number 82. Used since antiquity. Major environmental and public health concern due to toxicity and persistence. Still extensively used in lead-acid batteries. Pb-210 is an important radiogenic isotope.
Formula & Notation
IUPAC Name: Lead
Other Names / Synonyms: Pb, plumbum, lead metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 327.5 |
| Boiling Point | 1749.0 |
| Density | 11.34 |
| Molecular Weight | 207.2 |
| Solubility | Insoluble in water |
| Appearance | Soft, dense, bluish-grey metal |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Lead is a soft, dense, grey post-transition metal, atomic number 82. Used since antiquity. Major environmental and public health concern due to toxicity and persistence. Still extensively used in lead-acid batteries. Pb-210 is an important radiogenic isotope.
Lead-acid batteries (largest use - cars, backup power). Radiation shielding (X-ray rooms, nuclear). Cable sheathing. Solder (Pb-Sn alloys - being replaced). Shot and bullets. Paints (lead chromate, white lead - restricted). Glass (crystal glass). Plumbing (historical).
Cumulative neurotoxin especially harmful to children - no safe level of exposure. Causes cognitive impairment, developmental delays, hypertension. Blood lead level >5 ug/dL in children: CDC concern level. Lead paint and pipes are major legacy hazards. OSHA PEL: 50 ug/m3. Lead fumes from melting: ser…
The formula or notation for Lead is: Pb