methyl orange

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Related to methyl orange: phenolphthalein, Methyl red

meth′yl or′ange

an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.methyl orange - an azo dye used as an acid-base indicator; used for titrations involving weak bases
acid-base indicator - an indicator that changes color on going from acidic to basic solutions
azo dye - any dye containing one or more azo groups
References in periodicals archive ?
The ability of the membrane was investigated by studying the separation of methyl orange as the pollutant sample from water through physical separation and photocatalytic degradation methods both individually and simultaneously.
After characterization we found that 4wt% InVO4+TiO2 mixture displayed the most promising characteristics for photo-oxidation under visible light; From the BET surface area analysis it showed the largest surface area out of the prior mentioned TiO2= Xwt% INVO4 mixtures and a degradation amount equivalent to 50% of Methyl Orange contaminant over 7 hours under visible light.
Other topics include silicon influence on corrosion properties of austenitic stainless steels, high potency late inoculation of grey cast iron, tensile properties of martensitic stainless steel weldments, and titanium dioxide thin film for photodegradation of methyl orange.