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ChemicalBook Product Catalog Biochemical Engineering Biochemical Reagents Biological Dyes Methyl Orange

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Methyl Orange

$ 1.00 /1KG

Min. Order1G
Purity99%
Cas No547-58-0
Supply Ability100KG
Update time2019-07-06

career henan chemical co

career henan chemical co

7YR

China

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Chemical Properties

Product Name	Methyl Orange
CAS No	547-58-0
EC-No	208-925-3
Min. Order	1G
Purity	99%
Supply Ability	100KG
Release date	2019/07/06

AD68

Methyl Orange Basic information

Description References

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;Azo
Mol File:	547-58-0.mol

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
pka	3.4(at 25℃)
Colour Index	13025
color	Yellow-Orange
PH	6.5 (5g/l, H2O, 20℃)
PH Range	3.1(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.
λmax	507nm, 522nm, 464nm
Merck	14,6105
BRN	4732884
Stability:	Stable. Incompatible with strong oxidizing agents.
Biological Applications	Detecting microorganisms; treating dermatological diseases,vaginal affections; dental materials; wound dressing materials
Major Application	Liquid 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 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
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	29270000
Hazardous Substances Data	547-58-0(Hazardous Substances Data)

Methyl Orange Usage And Synthesis

Description	Methyl 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.
References	[1] https://en.wikipedia.org/wiki/Methyl_orange [2] Mohammed Bassim Alqaragully (2014) International Journal of Advanced Research in Chemical Science, 1, 48-59
Chemical Properties	orange-yellow powder
Uses	As 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 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.

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