Called Also Mineral Yellow Has Improperly Been Classed As An

: ON THE PRIMARY, YELLOW.

orpiment, from which it differs in not being a sulphide, and in

containing lead. It is prepared from arsenic fluxed with litharge, and

reduced to powder. It is much like orpiment in colour, dries better, and

not being affected by lead, is less liable to change in tint. The

presence of the litharge, however, renders it subject to be blackened by

sulphuretted hydrogen. Of course it is poisonous.



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