What is the role of Lead-monoxide

What is the role of Lead-monoxide? There's a lot of people who don't know about calcium oxide, and here's the introduction to it:

There are two varieties of lead oxide: one is the red square crystal and the other is called the monk. The other is an orthonormal crystal, also called lead yellow, density: 8.0 g/cm 3. Both shift point of 488.5 ° C, lower than the temperature, the conversion function is relatively slow. Both are difficult to dissolve in water. Lead monoxide is soluble in acid; It can also be slightly soluble in a strong base solution. When heated, the lead is easily reduced to metal lead by hydrogen, carbon, carbon monoxide, etc.

Areas of application:

It is used to smelt metal lead, make lead glass, lead compound, catalyst and paint drier etc.

It is used as an analytical reagent and silicate flux, also used in amino acid precipitation.

Lead glass for electronic tubes, picture tube, optical glass and X-ray and anti-radiation rubber products.

Used to make PVC plastic stabilizer. It's the raw material for other lead salts. In the paint industry, it is made of lead soap and used as a drier in paint. It is used in the manufacture of high index optical glass, ceramic enamel and precision machine tool, it is a medical raw material, rubber coloring agent. It is also used in battery plate making and oil refining.