Mordant Orange 1 Chemical Properties

Melting point:

250°C

Boiling point:

429.53°C (rough estimate)

Density 

1.3681 (rough estimate)

refractive index 

1.5600 (estimate)

solubility 

Soluble in water, ethanol; slightly soluble in acetone

form 

powder

Colour Index 

14030

pka

11.2(at 25℃)

color 

Orange-brown

PH Range

10(Yellow)-12(Violet)

Water Solubility 

SOLUBLE

λmax

385nm

Merck 

14,255

BRN 

962365

Major Application

Display device, photoresist, nanoparticles, sensors, image-recoring materials, photoconductive materials, photography, electrorheological materials, copying materials, optical engineering applications, monitoring oil degradation, lubricant, flame luminosity enhancing agent, coloring zinc, method for polymerization of vinyl chloride, determination of OH groups on resins, cosmetics, diapers, food storage, measurement of acidity injuice, assay for aldehyde contents, determination of albumin, agent for plaque, method for counting leukocytes, antifungal agent

InChIKey

ZHFPEICFUVWJIS-BGWNKZQTSA-M

CAS DataBase Reference

2243-76-7(CAS DataBase Reference)

EPA Substance Registry System

Benzoic acid, 2-hydroxy-5-[(4-nitrophenyl)azo]- (2243-76-7)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-36

Safety Statements 

24/25-26

WGK Germany 

3

RTECS 

VO5310000

HS Code 

32041200

MSDS

• Language:English Provider:Mordant Orange 1
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Mordant Orange 1 Usage And Synthesis

Chemical Properties

brown powder

Preparation

4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling.

Properties and Applications

dark yellow orange and brown. Dye soluble in water and Etanol be golden yellow, slightly soluble in Acetone and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid to red light yellow, shallow green light yellow after diluted produce precipitation; In concentrated nitric acid for yellow to amber solution. Dye aqueous solution to join concentrated hydrochloric acid have green yellow precipitation; Add Sodium hydroxide solution for red wheat brown. Mainly used for wool, silk, nylon dyeing, also can be in wool and silk printing. Can also be used in electrochemical silver, biological coloring and indicator, wall paper and leather tinting.

Purification Methods

The free acid is precipitated by adding HCl to an aqueous solution of the Na salt. After 2 recrystallisations from aqueous AcOH, it has m 255o(dec); [m 253-254o(dec) was reported by Hewitt & Fox J Chem Soc 79 49 1901]. The free acid recrystallises from dilute AcOH as orange brown needles. The Na salt changes colour from yellow to red when the pH is increased from 10.2 to 12.0. [Woodland et al. J Am Chem Soc 75 5835 1953, Beilstein 16 IV 372.]

Mordant Orange 1(2243-76-7)Related Product Information

• Mordant Red 19
• Acetylsalicylic acid
• Sulfasalazine
• Salicylic acid
• 2-Bromo-5-nitropyridine
• 5-Aminosalicylic acid
• ALIZARIN YELLOW R SODIUM SALT, 96%, PURE,Alizarin Yellow R sodium salt, pure,ALIZARIN YELLOW R SODIUM SALT,ALIZARIN YELLOW R,Mordant Orange 1 monosodium salt
• 4-NITROAZOBENZENE TECH. 90
• 4-PHENYLAZOPHENOL
• AMMONIUM SALICYLATE
• 5-(4-AMINO-PHENYLAZO)-2-HYDROXY-BENZOIC ACID
• 4-AMINO-2-METHYLPHENOL
• C.I.Mordant Orange 15
• disodium 5-(4-(4-sulphophenylazo)phenylazo)salicylate
• C.I.Mordant Orange 14,Mordant orange 14,Acid mordant Orange 14
• Acid Mordant Orange G
• Mordant Orange 29,C.I.Mordant Orange 29
• 4-AMINO-2-(HYDROXYMETHYL)BENZENOL