Chrome red

Chrome Red is a synthetic inorganic pigment that is commonly used in a variety of applications due to its bright red color and high opacity. It is also known as lead(II) chromate, PbCrO4, and is often used in paints, plastics, inks, and ceramics.

History

The use of Chrome Red as a pigment dates back to the 19th century. It was first synthesized in the laboratory in the early 1800s and quickly gained popularity due to its vibrant color and excellent covering power.

Production

Chrome Red is produced by the reaction of lead(II) nitrate with potassium chromate. This reaction produces a bright red precipitate of lead(II) chromate, which is then washed, dried, and ground to produce the pigment.

Applications

Due to its bright red color and high opacity, Chrome Red is used in a variety of applications. It is commonly used in paints, where it provides excellent coverage and a vibrant color. It is also used in plastics, inks, and ceramics, where it provides a similar effect.

Health and Safety

Despite its widespread use, Chrome Red is known to be toxic and carcinogenic. It is classified as a by the International Agency for Research on Cancer. As such, its use is regulated in many countries, and it is often replaced with safer alternatives in applications where it may come into direct contact with humans.

See Also

• lead(II) chromate
• PbCrO4
• lead(II) nitrate
• potassium chromate