Note:  Do not rely on this information. It is very old.

Imperial Green

Imperial Green, also known as emerald green, consists of the double arsenite and acetate of copper. It has a fine green colour, and is a very permanent pigment, being unaffected by exposure to the atmosphere, but possesses the disadvantage of being of a very poisonous nature.

“The LORD your God is in your midst, a mighty one who will save; he will rejoice over you with gladness; he will quiet you by his love; he will exult over you with loud singing.”
Zephaniah 3:17