Dictionary.com
Thesaurus.com

methyl orange

American  

noun

Chemistry.
  1. an orange-yellow, slightly water-soluble powder, C 1 4 H 1 4 N 3 NaO 3 S, used chiefly as an acid-base indicator.


Etymology

Origin of methyl orange

First recorded in 1880–85

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The anion of methyl orange, In−, is yellow, and the nonionized form, HIn, is red.

From Textbooks Feb. 14, 2019

The equilibrium in a solution of the acid-base indicator methyl orange, a weak acid, can be represented by an equation in which we use HIn as a simple representation for the complex methyl orange molecule:

From Textbooks Feb. 14, 2019

When we add acid to a solution of methyl orange, the increased hydronium ion concentration shifts the equilibrium toward the nonionized red form, in accordance with Le Châtelier’s principle.

From Textbooks Feb. 14, 2019

Alkalinity of the Soluble Ash—Official Cool the filtrate from 9 and titrate with N/10 hydrochloric acid, using methyl orange as an indicator.

From All About Coffee by William H. (William Harrison) Ukers

About 7-8 grammes of the sample are dissolved in water, and made up to 100 c.c., and the total alkalinity determined by titrating 20 c.c. with N/1 acid, using methyl orange as indicator.

From The Handbook of Soap Manufacture by W. H. Simmons

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training