2832-40-8 Usage
Description
Disperse Yellow 3 is an azoic dye that is responsible for occupational contact dermatitis in workers in the textile industry. It is also found in some semi-permanent hair dyes and is characterized by a structure consisting of acetanilide substituted on the 4-position of the phenyl group with a 6-hydroxy-m-tolylazo group.
Uses
Disperse Yellow 3 is used as a dye for various applications due to its properties and solubility in different solvents.
Used in Textile Industry:
Disperse Yellow 3 is used as a dye for dyeing textiles, sheepskins, and furs. It is also used for coloring polymethyl methacrylate and nylon.
Used in Surface Dyeing of Cellulose Acetate:
Disperse Yellow 3 is used as a dye for the surface dyeing of cellulose acetate, which is a common material used in the production of textiles and other products.
Used in Stocking Dye:
Disperse Yellow 3 is used as a dye for stocking dye, which is a type of dye used in the production of stockings and other hosiery items.
Used in Polyester and Acetate Fibers:
Disperse Yellow 3 is used as a dye for polyester and acetate fibers, which are commonly used in the textile industry for clothing and other products.
Used in Environmental Testing:
Disperse Yellow 3 is used in environmental testing to study the effects of dyes and their metabolites on the environment.
Properties and Applications:
Disperse Yellow 3 is a yellow powder that is soluble in ethanol, acetone, and benzene. It is also soluble in strong sulfuric acid, where it appears orange, and in sodium hydroxide solution, where it appears yellow to yellow-brown. The fabric dyeing can also be used for vinegar fiber dyeing, nylon, and is fit for printing. It can also be used in plastic coloring.
Standard:
Disperse Yellow 3 has various standards for different types of fastness, such as ironing fastness (ISO 4-5), light fastness (ISO 3), perspiration fastness (ISO 6), washing fastness (ISO 5), fading (ISO 3), and staining (ISO 4-5).
Preparation
N-(4-aminophenyl)acetamide diazo, and to a p-Cresol?coupling
Air & Water Reactions
Azo dyes can be explosive when suspended in air at certain concentrations. Insoluble in water.
Reactivity Profile
Disperse Yellow 3 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. Disperse Yellow 3 is incompatible with strong oxidizing agents and strong acids .
Fire Hazard
Flash point data for Disperse Yellow 3 are not available; however, Disperse Yellow 3 is probably combustible.
Contact allergens
This azoic dye is responsible for textile dermatitis from
stockings and occupational contact dermatitis in workers
in the textile industry. It can be found in some
semipermanent hair dyes.
Safety Profile
Suspected carcinogen with experimental tumorigenic and carcinogenic data. Low toxicity by intraperitoneal route. An allergen. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx,.
Standard
Ironing Fastness
Fading
Stain
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 2832-40-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,3 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2832-40:
(6*2)+(5*8)+(4*3)+(3*2)+(2*4)+(1*0)=78
78 % 10 = 8
So 2832-40-8 is a valid CAS Registry Number.
InChI:InChI=1/C15H15N3O2/c1-10-3-8-15(20)14(9-10)18-17-13-6-4-12(5-7-13)16-11(2)19/h3-9,20H,1-2H3,(H,16,19)/b18-17+
2832-40-8Relevant articles and documents
Acid Dissociation Constants of Some 2-Hydroxy-5-methyl-4-Substituted-azobenzenes and Formation Constants of Their Chelates with Iron(III), Cobalt(II), Nickel(II) and Copper(II)
Masoud, Mamdouh S.,Osman, M. M.,Salem, T. M.,Khalil, E. A.
, p. 584 - 587 (2007/10/02)
Acid dissociation constants, pKa, are reported for a set of 2-hydroxy-5-methyl-4-substituted azobenzenes in 50percent (v/v) ethanol medium at 25+/-0.1 deg C and μ = 0.1.The substituent and the solvent, beside the pH are found to affect the tautomeric phenomena in the ligands.The ligands form 1:1 and 1:2 complexes in solutions.The pK values of the complexes have been evaluated spectrophotometrically.The complexes have been isolated in the solid state and characterized on the basis of elemental analyses, infrared and electronic spectral data.The solid complexes exist in the octahedral spatial configuration.
