Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Orpiment

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search

orpiment

(Science: chemistry) arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; formerly called auripigment. It is used in king's yellow, in white indian fire, and in certain technical processes, as indigo printing. Our orpiment and sublimed mercurie. (Chaucer) red orpiment, realgar; the red sulphide of arsenic. Yellow orpiment, king's yellow.

Origin: F, fr. L. Auripigmentum; aurum gold _ pigmentum pigment. Cf. Aureate, Pigment, Orpin, Orpine.