OCR Text |
Show Test for Arsenic A new and very delicate test tor arsenic has been tliscvered bv BettendorfT Its sensi bility is so great that it is said to be capable of deieciing one. part of arsenic in a million parts of solu ion; and the presence of antimony does not affect ii. in order to anply this test, the arseni-otis arseni-otis or arsenic liquid is mixed -Mth aqueous hydric-chloride (hydrochloric acid), untii fumes are apparent; thereupon there-upon chloride is added, which produces pro-duces a basic precipitate, containing the greater part of the arsenic as im-tal, mixed with stannic oxide. &ci-;it'jic A mcrir in . |