L

Lead(II) oxide

IUPAC: oxolead

OPb Inorganic Compounds CAS 1317-36-8
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Quick Reference
Formula / NotationOPb
CAS Number1317-36-8
Molecular Weight223
Melting Point887 °C
Boiling Point1472 °C
Density9.5 at 68 °F (USCG, 1999) - Denser than water; will sink
SolubilityIn water: 0.0504 g/L at 25 °C (alpha form); 0.1065 g/L at 25 °C (beta form)
AppearanceLitharge appears as odorless gray or yellow green or red-brown solid. Sinks in water. (USCG, 1999)
Also Known Asoxolead; Lead monoxide; 1317-36-8; Litharge; Lead oxide (PbO); Lead Oxide Yellow; Lead protoxide; Plumbous oxide; Yellow Lead Ocher; Litharge Pure
CategoryInorganic Compounds

What is Lead(II) oxide?

Lead(II) oxide (OPb) is an inorganic compound that appears as Litharge appears as odorless gray or yellow green or red-brown solid. Sinks in water. (USCG, 1999). It has a molecular weight of 223 g/mol. Its IUPAC name is oxolead. Boiling point: 1472 °C. Melting point: 887 °C.

Formula & Notation

OPb

IUPAC Name: oxolead

Other Names / Synonyms: oxolead; Lead monoxide; 1317-36-8; Litharge; Lead oxide (PbO); Lead Oxide Yellow; Lead protoxide; Plumbous oxide; Yellow Lead Ocher; Litharge Pure

Properties & Characteristics

Appearance: Litharge appears as odorless gray or yellow green or red-brown solid. Sinks in water. (USCG, 1999). Molecular formula: OPb. Molecular weight: 223 g/mol. Boiling point: 1472 °C. Melting point: 887 °C. Density: 9.5 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: In water: 0.0504 g/L at 25 °C (alpha form); 0.1065 g/L at 25 °C (beta form). Vapor pressure: 1 Pa at 724 °C; 10 Pa at 816 °C; 100 Pa at 928 °C; 1kPa at 1065 °C; 10 kPa at 1241 °C; 100 kPa at 1471 °C.

Physical Data

PropertyValue
Melting Point887 °C
Boiling Point1472 °C
Density9.5 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight223
SolubilityIn water: 0.0504 g/L at 25 °C (alpha form); 0.1065 g/L at 25 °C (beta form)
AppearanceLitharge appears as odorless gray or yellow green or red-brown solid. Sinks in water. (USCG, 1999)

Uses & Applications

Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.

Safety Information

May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Lead(II) oxide
Formula OPb
CAS Number 1317-36-8
Molecular Weight 223
Category Inorganic Compounds
Index All "L" terms
Synonyms oxolead; Lead monoxide; 1317-36-8; Litharge; Lead oxide (PbO); Lead Oxide Yellow; Lead protoxide; Plumbous oxide; Yellow Lead Ocher; Litharge Pure

Frequently Asked Questions

Lead(II) oxide (OPb) is an inorganic compound that appears as Litharge appears as odorless gray or yellow green or red-brown solid. Sinks in water. (USCG, 1999). It has a molecular weight of 223 g/mol. Its IUPAC name is oxolead. Boiling point: 1472 °C. Melting point: 887 °C.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.

AllChemicals.info — The Online Chemical Glossary | https://allchemicals.info/chemical/lead-ii-oxide

For educational purposes only. Verify all information before use.