Lead(II) oxide, also known as litharge or massicot, is a chemical compound with the formula PbO. It appears as a yellow or red powder and is primarily used in the production of glass, ceramics, and as a pigment. Lead(II) oxide is also important in the manufacturing of lead-acid batteries, where it serves as a key component in the electrodes. This compound is produced by heating lead in the presence of oxygen. While it has various industrial applications, lead(II) oxide is toxic and poses health risks, making proper handling and disposal essential to prevent environmental contamination and health hazards.