8003-22-3 Usage
Description
Solvent Yellow 33 is a bright greenish yellow solid or canary yellow powder that is a synthetic organic dye. It is characterized by its brilliant greenish yellow color and is insoluble in water, slightly soluble in alcohol, linseed oil, mineral oil, oleic acid, paraffin wax, and stearic acid. However, it is soluble in acetone, chloroform, benzene, and toluene. In concentrated sulfuric acid, it appears as a yellow-brown color, and upon dilution, it forms a yellow floc precipitate. It has a melting point of 160°C and exhibits light fastness and heat resistance.
Uses
Used in Cosmetic Composition:
Solvent Yellow 33 is used as a colorant in cosmetic compositions for application to the skin, lips, and/or body surface. It provides a vibrant color to these products while being safe for external use.
Used in Environmental Testing:
This dye is utilized in environmental testing to monitor the presence of dyes and metabolites in various samples, helping to assess the environmental impact of these substances.
Used in Spirit Lacquers, Polymers, and Resins:
Solvent Yellow 33 is used as a coloring agent in spirit lacquers, polystyrenes, polycarbonates, polyamides, and acrylic resins. Its bright color enhances the appearance of these materials and improves their aesthetic appeal.
Used in Colored Smokes:
This dye is employed in the production of colored smokes, providing a vivid and visually striking effect for various applications such as military signaling, crowd control, and special effects in the entertainment industry.
Used in Hydrocarbon Solvents:
Solvent Yellow 33 is occasionally used in hydrocarbon solvents to impart color and improve the visual identification of these solvents.
Used in Externally Applied Drugs and Cosmetics:
This dye is used in externally applied drugs and cosmetics to provide a consistent and attractive color, enhancing the overall appearance and appeal of these products.
Chemical Properties:
Solvent Yellow 33 is a yellow powder with a melting point of 160°C. It is stable in water, sodium carbonate (5%), and hydrochloric acid (5%), showing no change when exposed to these substances. It is insoluble in water but sublimates at high temperatures, making it suitable for various applications where heat resistance is required.
Standard:
The light fastness and heat resistance of Solvent Yellow 33 make it suitable for use in various industries, including cosmetics, environmental testing, and the production of lacquers, polymers, and resins. Its chemical properties and applications make it a versatile and valuable dye in these fields.
Preparation
the dye: (a) 2-Methylquinoline?and Phthalic anhydride in 200 ℃ in the presence of Zinc chloride condensation; (b) 2-Methylquinoline?and Diethyl phthalate?in the 100 ℃ were hot. (c) 3 – (2 – quinolin – ylmethylidene) – 2 – benzo [c] furanone and Sodium ethoxide in 240 ~ 250 ℃ were hot. Late dye: 2-Methylquinoline?and 2,6-Dimethylquinoline?Phthalic anhydride mixture and in 190 ~ 220 ℃ were hot.
Air & Water Reactions
Insoluble in water.
Fire Hazard
Flash point data for Solvent Yellow 33 are not available. Solvent Yellow 33 is probably combustible.
Flammability and Explosibility
Nonflammable
Standard
Light Fastness
Melting point
Stable
ISO
General
Check Digit Verification of cas no
The CAS Registry Mumber 8003-22-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 8003-22:
(6*8)+(5*0)+(4*0)+(3*3)+(2*2)+(1*2)=63
63 % 10 = 3
So 8003-22-3 is a valid CAS Registry Number.
InChI:InChI=1/C18H11NO2/c20-17-12-6-2-3-7-13(12)18(21)16(17)15-10-9-11-5-1-4-8-14(11)19-15/h1-10,19H
