What Do You Think Is The Future Of Pigment Green 7?
While most pigments are based on natural compounds, Pigment Green 7, or PY3, is manufactured from petroleum and other chemicals in a process called polymerization. First used in the 1920s, PY3 has been used as everything from an artificial emerald to the coloring of M&Ms! But it’s also been linked to concerns about heavy metal … Read more