Methyl Orange
![Methyl Orange Structure](CAS/GIF/547-58-0.gif)
- CAS No.
- 547-58-0
- Chemical Name:
- Methyl Orange
- Synonyms
- MO;HELIANTHIN;Methyl Orange solution;sodiuM (E)-4-((4-(diMethylaMino)phenyl)diazenyl)benzenesulfonate;orang;orange3;CI 13025;S NO 176;oranziii;BETZ 0211
- CBNumber:
- CB2264381
- Molecular Formula:
- C14H14N3NaO3S
- Molecular Weight:
- 327.33
- MOL File:
- 547-58-0.mol
- Modify Date:
- 2024/6/18 9:56:13
Melting point | 300 °C |
---|---|
Density | 0.987 g/mL at 25 °C |
Flash point | 37 °C |
storage temp. | Store at +5°C to +30°C. |
solubility | 5g/l |
Colour Index | 13025 |
form | Powder/Solid |
pka | 3.4(at 25℃) |
Specific Gravity | 0.987 |
color | Yellow-Orange |
PH | 6.5 (5g/l, H2O, 20℃) |
Odor | Odorless |
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 |
CAS DataBase Reference | 547-58-0 |
EPA Substance Registry System | Methyl orange (547-58-0) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS06 |
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---|---|---|---|---|---|---|---|---|---|---|
Signal word | Danger | |||||||||
Hazard statements | H301 | |||||||||
Precautionary statements | P264-P270-P301+P310-P405-P501 | |||||||||
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 | |||||||||
Toxicity | LD50 orally in Rabbit: 60 mg/kg | |||||||||
NFPA 704 |
|
Methyl Orange price More Price(21)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 68250 | Methyl Orange for microscopy (Hist.), indicator (pH 3.0-4.4) | 547-58-0 | 25G | ₹2468.1 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 68250 | Methyl Orange for microscopy (Hist.), indicator (pH 3.0-4.4) | 547-58-0 | 100G | ₹3528.95 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 68250 | Methyl Orange for microscopy (Hist.), indicator (pH 3.0-4.4) | 547-58-0 | 500G | ₹13823.53 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 114510 | Methyl Orange ACS reagent, Dye content 85?% | 547-58-0 | 100G | ₹4903.73 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 114510 | Methyl Orange ACS reagent, Dye content 85?% | 547-58-0 | 25G | ₹6116.13 | 2022-06-14 | Buy |
Methyl Orange Chemical Properties,Uses,Production
Chemical Properties
Orange-yellow powder. Soluble in hotwater; insoluble in alcohol.
Uses
Methyl orange is a pH indicator frequently used in titrations, also used for histological microscopy.
Preparation
4-Aminobenzenesulfonic acid diazo, and N,N-dimethylaniline coupling.
Definition
An acid–base indicator that is red in solutions below a pH of 3 and yellow above a pH of 4.4. As the transition range is clearly on the acid side, methyl orange is suitable for the titration of an acid with a moderately weak base, such as sodium carbonate.
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.
Purification Methods
Recrystallise 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
Raw materials
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Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
Bhakti Impex | +919822268653 | Pune, India | 76 | 58 | Inquiry |
Arnish Laborates Pvt Ltd | +91 7208475595 | Maharashtra, India | 187 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
Esjay Chemicals | +919820452929 | Maharashtra, India | 110 | 58 | Inquiry |
Anubhav Business Corporation | +91-2228014519 +91-2228014999 | Maharashtra, India | 119 | 58 | Inquiry |
Phoenix Colours | +91-9768127681 +91-9819199181 | Maharashtra, India | 182 | 58 | Inquiry |
GSP Dyes and Chemicals Pvt.Ltd | +91-22-28144802 +91-2228144802 | Maharashtra, India | 79 | 58 | Inquiry |
Scientific OEM | +91-22- 2343 7546 / 2341 3094 | New Delhi, India | 1996 | 38 | Inquiry |
ALPHA CHEMIKA | +91-22-22061123 +91-22-66382501 | Mumbai, India | 1681 | 43 | Inquiry |
FINAR LTD | +91 - 2717 - 616717 | New Delhi, India | 660 | 58 | Inquiry |
Supplier | Advantage |
---|---|
Bhakti Impex | 58 |
Arnish Laborates Pvt Ltd | 58 |
JSK Chemicals | 58 |
Esjay Chemicals | 58 |
Anubhav Business Corporation | 58 |
Phoenix Colours | 58 |
GSP Dyes and Chemicals Pvt.Ltd | 58 |
Scientific OEM | 38 |
ALPHA CHEMIKA | 43 |
FINAR LTD | 58 |
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