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Methyl Orange

Methyl Orange Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Products Intro: Product Name:Methyl Orange
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: CAS:547-58-0
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Products Intro: Product Name:Methyl Orange
Company Name: career henan chemical co
Tel: +86-371-86658258
Products Intro: Product Name:Methyl Orange
Purity:99% Package:1KG;1USD
Company Name: Creasyn Finechem(Tianjin) Co., Ltd.  
Tel: 86-22-83945878,83945171,83945172
Products Intro: CAS:547-58-0

Lastest Price from Methyl Orange manufacturers

  • Methyl Orange
  • US $1.00 / KG
  • 2018-08-14
  • CAS:547-58-0
  • Min. Order: 1G
  • Purity: 99%
  • Supply Ability: 100KG
Methyl Orange Basic information
Description References
Product Name:Methyl Orange
Synonyms:ACID ORANGE 52;4-[4-(DIMETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID, SODIUM SALT;4-DIMETHYLAMINOAZOBENZENE-4-SULFONIC ACID SODIUM SALT;4-[P-(DIMETHYLAMINO)PHENYLAZO]BENZENESULFONIC ACID SODIUM SALT;4-((4-(dimethylamino)phenyl)azo)-benzenesulfonicacisodiumsalt;4-[[4-(dimethylamino)phenyl]azo]-benzenesulfonicacisodiumsalt;4-dimethylaminoazobenzene-4’-sulphonicacidsodiumsalt;abcolmethylorange
Product Categories:Intermediates of Dyes and Pigments;Organics;Piperazine derivates;Analytical Chemistry;Indicator (pH);pH Indicators;Azo;Chemistry;Indicator Solutions;Indicators;Titration
Mol File:547-58-0.mol
Methyl Orange Structure
Methyl Orange Chemical Properties
Melting point 300 °C
density 0.987 g/mL at 25 °C
Fp 37 °C
storage temp. Store at RT.
solubility 5g/l
form Powder/Solid
pka3.4(at 25℃)
Colour Index 13025
color Yellow-Orange
PH6.5 (5g/l, H2O, 20℃)
PH Range3.1(Red)-4.4(Orange)
Water Solubility Soluble in ethanol. Partially soluble in hot water. Slightly soluble in cold water and pyrimidine. Insoluble in ether and alcohol.
λmax507nm, 522nm, 464nm
Merck 14,6105
BRN 4732884
Stability:Stable. Incompatible with strong oxidizing agents.
Biological ApplicationsDetecting microorganisms; treating dermatological diseases,vaginal affections; dental materials; wound dressing materials
Major ApplicationLiquid crystals, thin films, sensors, sol-gel matrix, waveguides, host-guest chemistry, display device, corrosion inhibitor, glass coatings, paints, wound dressing materials, pharmaceuticals, dental materials, measuring nucleic acid
EPA Substance Registry SystemBenzenesulfonic 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
HS Code 29270000
Hazardous Substances Data547-58-0(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 60 mg/kg
MSDS Information
SigmaAldrich English
ACROS English
ALFA English
Methyl Orange Usage And Synthesis
DescriptionMethyl orange is an orange, azoic dye. It has a transition range from 3.1 to 4.4. Methyl orange does not have a full spectrum of color change, but has a sharper end point. Methyl orange shows red color in acidic medium (pH < 3.1) and yellow color in basic medium (pH > 4.4). It is used as a pH-indicator in 0.1% aqueous solution for the titration of mineral acids (not organic acids) and strong bases. Methyl orange is also used in dyeing and printing textiles as a dyestuff.
[2] Mohammed Bassim Alqaragully (2014) International Journal of Advanced Research in Chemical Science, 1, 48-59
Chemical PropertiesOrange-yellow powder. Soluble in hotwater; insoluble in alcohol.
UsesAs indicator in 0.1% aqueous solution. pH: 3.1 red, 4.4 yellow. Employed for titrating most mineral acids, strong bases, estimating alkalinity of waters; useless for organic acids. In dyeing and printing of textiles.
General DescriptionOrange powder.
Air & Water ReactionsAzo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity ProfileMethyl 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.
Purification MethodsRecrystallise it twice from hot water, then wash it with a little EtOH followed by diethyl ether. It is an indicator: pH 3.1 (red) and pH 4.4 (yellow). [Beilstein 16 IV 510.]
Methyl Orange Preparation Products And Raw materials
Preparation ProductsN,N-Dimethyl-1,4-phenylenediamine-->Potassium tetrafluoroborate-->SODIUM CYCLOPENTADIENIDE
Raw materialsToluene-->N-Methylaniline-->Sulfanilic acid-->Sulfamic acid -->4-Aminobenzoic acid
Tag:Methyl Orange(547-58-0) Related Product Information
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