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Solvent Yellow 33 / Solvent Dyes
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Solvent Yellow 33 / Solvent Dyes
CAS No.: 8003-22-3
Molecular formula: C₁₈H₁₄N₂O₂
Features: excellent thermal stability and light resistance, good compatibility with resins, along with high tinting strength, excellent migration resistance, and a wide range of applications.
Application: Used for coloring plastics (including ABS, PMMA, PS, e.g., household appliance casings, optical lenses) and solvent-based printing inks (including inkjet inks);
Description
Description
Solvent Yellow 33 is a yellow to dark yellow solid, classified as a quinoline-based oil-soluble dye.
It features excellent thermal stability (suitable for high-temperature injection molding) and light resistance (ISO Grade 7-8). Insoluble in water yet easily soluble in solvents like acetone, it exhibits good compatibility with resins such as ABS/PMMA, along with high tinting strength, excellent migration resistance, and a wide range of applications.
Solvent Yellow 33 is used for coloring plastics (including ABS, PMMA, PS, e.g., household appliance casings, optical lenses) and solvent-based printing inks (including inkjet inks);
Identification Information:
Color Index: Solvent yellow 33
CAS No.: 8003-22-3
Molecular formula: C₁₈H₁₄N₂O₂
Chemical Family quinoline Series
Product specification – Solvent yellow 33
Appearance Yellow powder
Tinting Strength 100±3%
Shade Color Similar to the standard,
Ash ≤ 0.5%
Moisture ≤ 0.5%
Color Differential ValueΔE ≤ 0.8
Density g/cm3 1.345
Melting Point ℃ 241-244
Technical Data
| Test Items | PS | ABS | SAN | PMMA | PC | R-PVC | PA6 | PET |
| Heat resistance temperature, ℃ (0.05% dyes, transparent) | 300 | 250 | 300 | 250 | 320 | – | – | – |
| Heat resistance temperature, ℃ (0.05% dyes + 1.0% Titanium dioxide) | 300 | 250 | 280 | 250 | 300 | – | – | – |
| Migration resistance | – | – | – | – | – | – | – | – |
| Light fastness (0.05% dyes, transparent) | 5-6 | 6 | 5-6 | 6 | 6 | 5-6 | 6 | 5 |
| Weather resistance | – | – | – | – | – | – | – | – |
| Acid resistance (in 5% hydrochloric acid solution) | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 |
| Alkali resistance (in 5% caustic soda solution) | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 | 4-5 |
Solvent yellow 33 solubility in organic solvent at 20℃(g/l)
| Acetone | Butyl Acetate | Methylbenzene | Dichloromethane | Ethylalcohol |
| 48-52 | 15-20 | 0.5-0.7 | 0.2-0.4 | 1.0-1.5 |
Application
| PS | ● | PET | ● | PC | ○ |
| AS | ● | PVC- R | ● | SAN | ○ |
| ABS | ● | PVC-U | ● | HIPS | ● |
| PMMA | ● | PA6 | – |
Note: ● = recommended ○ = potential use – = not recommended
Recommended Dosage
Transparent: 0.03 -0.04%
Non-transparent: 0.05 -0.07%
Packaging:
Regular Packaging is in 25kgs paper drum, 450kgs/Pallet.
Unmatched Thermal Stability and Light Resistance
Solvent Yellow 33 stands out as a premium oil-soluble dye that delivers unmatched performance in demanding industrial applications. Characterized by its rich yellow to dark yellow hue, this quinoline-based dye excels with excellent thermal stability, making it a reliable choice for high-temperature injection molding processes. Its superior light resistance, rated ISO Grade 7-8, ensures vibrant and long-lasting coloration across a variety of applications.
Compatibility and Ease of Use
While insoluble in water, Solvent Yellow 33 dissolves effortlessly in solvents like acetone, offering versatile integration into multiple manufacturing workflows. The dye’s exceptional compatibility with resins such as ABS, PMMA, and PS makes it ideal for coloring plastics, whether it’s household appliance casings, optical lenses, or other industrial components. With high tinting strength and excellent migration resistance, it guarantees consistent and reliable results time after time.
Wide Range of Applications
The applications for Solvent Yellow 33 span widely across industries. It plays a crucial role in solvent-based printing inks, including inkjet inks, offering precise and vibrant coloration. Beyond industrial coloring, it also supports FDA-approved uses such as cosmetic coloring and biomedical tissue staining, signifying its adaptability to both scientific and commercial needs. Whether you’re enhancing product aesthetics or delivering specialized coloring for sensitive applications, Solvent Yellow 33 is engineered to exceed expectations.
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