methyl orange

methyl orange ExamplesWord Origin noun Chemistry.

1. an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator.

Compare methyl red. Origin of methyl orange First recorded in 1880–85 Also called gold orange, helianthine B, orange III, tropaeolin D, tropeolin D. Examples from the Web for gold orange Historical Examples of gold orange

Tint with methyl-orange and titrate with semi-normal ammonia.

A Textbook of Assaying: For the Use of Those Connected with Mines.

Cornelius Beringer and John Jacob Beringer