The eosine was separated from the oxide of lead by digesting the product for twenty-four hours in very strong alcohol.
The dyes with the ponceaus are faster than those with eosine or safranine.
In the latter mixture they stain really with the methylene blue salt of eosine.
The eosine plate was underexposed, but brought up everything fairly well except the scarlet hat, which came up like black.
Very good results in soap may be obtained by mixing a fast blue, as ultramarine or cobalt blue, with a red as rhodamine or eosine.
Potassa turns rosolic acid and coralline from an orange-red to a bright red, while it produces no change in eosine.
It affords the same reactions as eosine, but its tone is more inclined to an orange.
eosin e·o·sin (ē'ə-sən)
Any of a class of red acid dyes of the xanthene group used as cytoplasmic stains and as counterstains, especially the sodium and potassium salts of certain of these dyes.