vermilionette

from The Century Dictionary.

• noun A trade-name for a red pigment made by precipitating a solution of eosin with sodium carbonate in water by means of lead acetate. The precipitation may be effected in the presence of red lead or basic lead chromate, or white zinc may be used as the material on which to fix the eosin. Any such product is of little value because of its fugitive character as a pigment.