Methyl Orange

Cas NO.: 547-58-0

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Methylange

Cas NO.: 547-58-0

Methyl Orange Basic information
Product Name: Methyl Orange
Synonyms: STOCK METHYL ORANGE SOLUTION;SODIUM 4-(DIMETHYLAMINO)AZOBENZENE-4'-SULFONATE;S NO 176;ORANGE III;ORANGE ACID 52;P-DIMETHYLAMINOAZOBENZENESULFONIC ACID SODIUM SALT;P-[[P-(DIMETHYLAMINO)PHENYL]AZO]BENZENESULFONIC ACID, SODIUM SALT;MO
CAS: 547-58-0
MF: C14H14N3NaO3S
MW: 327.33
EINECS: 208-925-3
Product Categories: Intermediates of Dyes and Pigments;Organics;Piperazine derivates;Analytical Chemistry;Indicator (pH);pH Indicators;Chemistry;Indicator Solutions;Indicators;Titration
Mol File: 547-58-0.mol
Methyl Orange Structure
Methyl Orange Chemical Properties
mp  300 °C
density  0.987 g/mL at 25 °C
Fp  37 °C
storage temp.  Store at RT.
Colour Index  13025
Merck  14,6105
BRN  4732884
Stability: Stable. Incompatible with strong oxidizing agents.
EPA Substance Registry System Benzenesulfonic acid, 4-[[4-(dimethylamino)phenyl] azo]-, sodium salt(547-58-0)
Safety Information
Hazard Codes  T
Risk Statements  25-10
Safety Statements  45-24/25-16-36/37/39
RIDADR  UN 3143 6.1/PG 3
WGK Germany  3
RTECS  DB6327000
HazardClass  6.1
PackingGroup  III

Methyl Orange Usage And Synthesis
Chemical Properties orange-yellow powder
General Description Orange powder.
Air & Water Reactions Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile Methyl Orange is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Methyl Orange Preparation Products And Raw materials
Preparation Products N,N-Dimethyl-1,4-phenylenediamine-->Potassium tetrafluoroborate-->SODIUM CYCLOPENTADIENIDE
Raw materials Toluene-->N-Methylaniline-->Sulfanilic acid-->Sulfamic acid -->4-Aminobenzoic acid