Description References
ChemicalBook > CAS DataBase List > Methyl Orange

Methyl Orange

Description References
Product Name
Methyl Orange
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
Formula Weight
327.33
MOL File
547-58-0.mol
More
Less

Methyl Orange Property

Melting point:
300 °C
Density 
0.987 g/mL at 25 °C
bulk density
200-400kg/m3
Flash point:
37 °C
storage temp. 
Store at +5°C to +30°C.
solubility 
5g/l
form 
Powder/Solid
pka
3.4(at 25℃)
Colour Index 
13025
color 
Yellow-Orange
Specific Gravity
0.987
Odor
Odorless
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
CAS DataBase Reference
547-58-0
EPA Substance Registry System
Methyl orange (547-58-0)
More
Less

Safety

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)
Toxicity
LD50 orally in Rabbit: 60 mg/kg
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P405Store locked up.

P501Dispose of contents/container to..…

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
68250
Product name
Methyl Orange
Purity
for microscopy (Hist.), indicator (pH 3.0-4.4)
Packaging
25g
Price
$27
Updated
2024/03/01
Sigma-Aldrich
Product number
68250
Product name
Methyl Orange
Purity
for microscopy (Hist.), indicator (pH 3.0-4.4)
Packaging
100g
Price
$45
Updated
2024/03/01
Sigma-Aldrich
Product number
68250
Product name
Methyl Orange
Purity
for microscopy (Hist.), indicator (pH 3.0-4.4)
Packaging
500g
Price
$157
Updated
2024/03/01
Sigma-Aldrich
Product number
114510
Product name
Methyl Orange
Purity
ACS reagent, Dye content 85%
Packaging
25g
Price
$54
Updated
2024/03/01
Sigma-Aldrich
Product number
114510
Product name
Methyl Orange
Purity
ACS reagent, Dye content 85%
Packaging
100g
Price
$76.1
Updated
2024/03/01
More
Less

Methyl Orange Chemical Properties,Usage,Production

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. Soluble in hotwater; insoluble in alcohol.

Uses

Methyl orange is a pH indicator frequently used in titrations, also used for histological microscopy.

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.

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.

Definition

methyl orange: An organic dyeused as an acid–base indicator. Itchanges from red below pH 3.1 toyellow above pH 4.4 (at 25°C) and isused for titrations involving weakbases.

Preparation

4-Aminobenzenesulfonic acid diazo, and N,N-dimethylaniline coupling.

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.

Biological Activity

Methyl Orange is an azo dye which works as a pH indicator.

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.]

Properties and Applications

orange. The strong sulfuric acid for green light yellow, diluted into red orange. The dye solution to join strong hydrochloric acid for orange red; Add thick sodium hydroxide solution for green light yellow.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO
AATCC

Methyl Orange Preparation Products And Raw materials

Raw materials

Sulfanilic acid N-Methylaniline 4-Aminobenzoic acid Toluene Sulfamic acid

Preparation Products

Potassium tetrafluoroborate SODIUM CYCLOPENTADIENIDE N,N-Dimethyl-1,4-phenylenediamine
More
Less

Methyl Orange Suppliers

Americas 1 Australia 1 Austria 1 Belgium 1 Brazil 1 Canada 3 China 294 Czech Republic 3 Europe 3 France 3 Germany 7 Hungary 1 India 58 Italy 1 Japan 7 Mexico 2 Poland 1 Russia 1 Switzerland 2 Turkey 1 Ukraine 2 United Kingdom 12 United States 63 USA 1 Global 470
TCI Chemicals (India) Pvt. Ltd.
Tel
--
Fax
--
Email
sales-in@tcichemicals.com
Country
India
ProdList
6768
Advantage
58
A. B. Enterprises
Tel
--
Fax
--
Email
mlbang@rediffmail.com
Country
India
ProdList
1394
Advantage
58
Triveni chemicals
Tel
--
Fax
--
Email
sales@trivenichemical.com
Country
India
ProdList
6088
Advantage
58
Sisco Research Laboratories Pvt. Ltd.
Tel
--
Fax
--
Email
marketing@srlchem.com
Country
India
ProdList
4315
Advantage
58
Advent Chembio Pvt., Ltd.
Tel
--
Fax
--
Email
sales@adventchembio.com
Country
India
ProdList
623
Advantage
58
Asiel Chempharma
Tel
--
Fax
--
Email
asielchempharma@gmail.com
Country
India
ProdList
119
Advantage
58
Anubhav Business Corporation
Tel
--
Fax
--
Country
India
ProdList
102
Advantage
58
Oxford laboratories
Tel
--
Fax
--
Country
India
ProdList
652
Advantage
58
Belami Fine Chemicals Pvt Ltd
Tel
--
Fax
--
Country
India
ProdList
37
Advantage
58
Oster Chemical & Pharmaceutical Works Pvt. Ltd.
Tel
--
Fax
--
Email
osterchem@gmail.com
Country
India
ProdList
101
Advantage
58
Labort Fine Chem Pvt. Ltd
Tel
--
Fax
--
Country
India
ProdList
76
Advantage
58
Mala International
Tel
--
Fax
--
Country
India
ProdList
165
Advantage
58
Kalash Intermediates
Tel
--
Fax
--
Email
kalashint@yahoo.co.in
Country
India
ProdList
39
Advantage
58
Pallav Chemicals & Solvents Pvt. Ltd
Tel
--
Fax
--
Country
India
ProdList
52
Advantage
58
Unisource Chemicals Private Limited.
Tel
--
Fax
--
Email
sales@ucplchem.com
Country
India
ProdList
43
Advantage
58
Loba Chemie Pvt Ltd
Tel
--
Fax
--
Country
India
ProdList
498
Advantage
58
Esjay Chemicals
Tel
--
Fax
--
Country
India
ProdList
28
Advantage
58
Labkemical
Tel
--
Fax
--
Email
effectlabo@gmail.com
Country
India
ProdList
73
Advantage
58
Spectrochem Private Limited
Tel
--
Fax
--
Country
India
ProdList
1055
Advantage
58
Royal Industries
Tel
--
Fax
--
Country
India
ProdList
85
Advantage
58
Techno Pharmchem
Tel
--
Fax
--
Email
tecpharm@gmail.com
Country
India
ProdList
173
Advantage
58
Unisource Chemicals Private Limited
Tel
--
Fax
--
Country
India
ProdList
289
Advantage
58
Suvchem
Tel
--
Fax
--
Email
sales@suvchem.com
Country
India
ProdList
180
Advantage
58
Apex Chemicals
Tel
--
Fax
--
Country
India
ProdList
37
Advantage
58
GSP Chemical Industries (Esjay Chemicals)
Tel
--
Fax
--
Email
info@gspchem.com
Country
India
ProdList
68
Advantage
58
Heni Chemical Industries
Tel
--
Fax
--
Country
India
ProdList
27
Advantage
58
Loba Chemie Pvt., Ltd.
Tel
--
Fax
--
Email
@lobachemie.com
Country
India
ProdList
765
Advantage
58
Libra Chemical Exports Company
Tel
--
Fax
--
Country
India
ProdList
45
Advantage
58
Azole Rasayanas India Private Limited
Tel
--
Fax
--
Email
info@azolerasayanas.com
Country
India
ProdList
681
Advantage
58
Molychem
Tel
--
Fax
--
Country
India
ProdList
576
Advantage
58
GSP Dyes and Chemicals Pvt. Ltd (Formely known as GSP ENTERPRISES)
Tel
--
Fax
--
Email
sales@gspdyes.com
Country
India
ProdList
54
Advantage
58
Sisco Resech Laboratories Private Limited
Tel
--
Fax
--
Country
India
ProdList
655
Advantage
58
Phoenix Colours
Tel
--
Fax
--
Country
India
ProdList
43
Advantage
58
Anand Agencies
Tel
--
Fax
--
Email
en@gmail.com
Country
India
ProdList
2332
Advantage
58
Titan Biotech Limited
Tel
--
Fax
--
Country
India
ProdList
196
Advantage
58
Magnil Dye Chem
Tel
--
Fax
--
Country
India
ProdList
48
Advantage
58
K. Patel International (part of K. Patel Group)
Tel
--
Fax
--
Email
Shailendra_Goswami@kpateldyes.com
Country
India
ProdList
29
Advantage
58
Belami Fine Chemicals Pvt. Ltd.
Tel
--
Fax
--
Email
info@belamichemicals.com
Country
India
ProdList
89
Advantage
58
Innovative
Tel
--
Fax
--
Country
India
ProdList
617
Advantage
58
Maas Pharma Chemicals
Tel
--
Fax
--
Email
info@maaspharmachemicals.com
Country
India
ProdList
1607
Advantage
58
Avra Synthesis Pvt Ltd
Tel
--
Fax
--
Email
info@avrasynthesis.com
Country
India
ProdList
1603
Advantage
30
Union Drug & Chemical Company
Tel
--
Fax
--
Country
India
ProdList
6
Advantage
58
Central Drug House(P) Ltd.
Tel
--
Fax
--
Email
sales@cdhfinechemical.com
Country
India
ProdList
6157
Advantage
58
LOBA CHEMIE PVT.LTD.
Tel
--
Fax
--
Email
info@lobachemie.com
Country
India
ProdList
3075
Advantage
58
CHEMSWORTH
Tel
--
Fax
--
Email
info@chemsworth.com
Country
India
ProdList
6700
Advantage
30
FINAR LTD
Tel
--
Fax
--
Country
India
ProdList
660
Advantage
58
Scientific OEM
Tel
--
Fax
--
Email
neeraj@scientificoem.com
Country
India
ProdList
1994
Advantage
38
ALPHA CHEMIKA
Tel
--
Fax
--
Email
info@exporterlabchemicals.com
Country
India
ProdList
1679
Advantage
43
More
Less

View Lastest Price from Methyl Orange manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Methyl Orange 547-58-0
Price
US $10.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-05-24
Hebei Chuanghai Biotechnology Co., Ltd
Product
Methyl Orange 547-58-0
Price
US $25.00/ASSAYS
Min. Order
100ASSAYS
Purity
99.5%
Supply Ability
100 mt
Release date
2024-11-19
Hebei Chuanghai Biotechnology Co,.LTD
Product
Methyl Orange 547-58-0
Price
US $5.70/KG
Min. Order
10KG
Purity
99.9%
Supply Ability
10000kg
Release date
2024-07-31

547-58-0, Methyl OrangeRelated Search:

Hyaluronic acid N,N,N',N'-Tetramethylazodicarboxamide Methyl acrylate Diclofenac sodium Sodium bicarbonate Ethyl 2-(Chlorosulfonyl)acetate Sodium citrate Bensulfuron methyl Sodium hydroxide ORANGE I Sodium acetate Kresoxim-methyl Methylparaben Sodium alginate Citric acid Sodium chloride Methyl acetate Thiophanate-methyl

  • 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
  • TROPAEOLIN D
  • CI NO 13025
  • CI 13025
  • HELIANTHIN
  • HELIANTHINE
  • HELIANTHISE
  • GOLD ORANGE
  • BETZ 0211
  • METHYL ORANGE
  • METHYL ORANGE - BROMOCRESOL GREEN
  • METHYL ORANGE INDICATOR SOLN
  • METHYL ORANGE MIXED INDICATOR
  • METHYL ORANGE, SODIUM SALT
  • c.i.acidorange52
  • c.i.acidorange52(methylorange)
  • ciacidorange52
  • eniamethylorange
  • helianthineb
  • kcamethylorange
  • methylorangeb
  • methyloranz
  • orange3
  • oranziii
  • oranzkysela52
  • oranzmethylova
  • p-((p-(dimethylamino)phenyl)azo)-benzenesulfonicacisodiumsalt
  • sodiump-dimethylaminoazobenzenesulfonate
  • tropeolin D
  • Acid Orange 52 C.I. 13025
  • methyl orange for microscopy
  • Methyl Orange solution
  • IDRANAL 100 (IDRANAL III SOLUTION) FOR W ATER HARDNESS DETERMINATION
  • METHYL ORANGE, 0.1 WT. % SOLUTION IN WAT ER
  • METHYL ORANGE CERTIFIED
  • METHYL ORANGE SOLUTION I07 100 ML
  • METHYL ORANGE INDICATOR, REAG. PH. EUR.
  • METHYL ORANGE A.C.S. REAGENT
  • MethylOrange(AcidOrange52)
  • MethylOrangeC.I.13025
  • MethylOrangeIndicator
  • METHYL ORANGE (C.I. no 13025 )
  • MethylOrange,94%
  • Methyl Orange, certified, pure
  • Methyl Orange, conform to ACS, pure
  • Methyl Orange, high purity biological stain, pure
  • Methyl Orange, indicator, pure
  • METHYL ORANGE REAGENT (ACS)
  • METHYL ORANGE SOLUTION 0.05% AQUEOUS
  • methyl orange sodium salt, acs
  • METHYL ORANGE SOLUTION 0.1% INDICATOR PH