methyl orange
nounChemistry.
an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator.
Origin of methyl orange
1First recorded in 1880–85
- Also called gold orange, helianthine B, orange III, tropaeolin D, tropeolin D.
- Compare methyl red.
Words Nearby methyl orange
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use methyl orange in a sentence
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 BeringerDisconnect the receiver, and tint its contents with methyl orange.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerTint with methyl orange, and run in from an ordinary burette normal solution of sulphuric acid until a pink tint is got.
A Textbook of Assaying: For the Use of Those Connected with Mines. | Cornelius Beringer and John Jacob BeringerThe diluted solution is acid in reaction toward litmus and phenolphthalein and alkaline toward methyl orange.
Thus blue litmus is changed to red, and yellow methyl orange is changed to red.
An Elementary Study of Chemistry | William McPherson
Browse