👉 Metallochrome is a type of chromate, which is a yellowish-brown pigment that has been used in various applications such as paint and printing. It was first synthesized in the 1930s by chemists at the University of California at Santa Barbara, who discovered it by accident while studying the effect of iron on the color of lead glass. The name "metallochrome" comes from its ability to bind iron with a high degree of affinity, which makes it suitable for