Solvent Yellow 179
Transparent Yellow 6G (Solvent Yellow 179) is a methine solvent dye with a greenish yellow shade and a melting point of 115°C. It exhibits good light fastness and excellent heat resistance in service, and it can be used for engineering plastics with highly recommended use for coloring of spin dyeing. The dye delivers very clean, lemon leaning transparent yellows in PS, ABS, PC, PET and PMMA and is valued where the greenest possible yellow cast is required.

Key Features
Technical Specifications
| Trade Name | Transparent Yellow 6G |
| C.I. NO. | - |
| CAS NO. | 80748-21-6 |
| EU NO | - |
| Chemical Group | Methine |
| Solubility | Excellent in organic solvents |
| Melting Point | 115°C |
Physical Data & Fastness Properties
| Light Fastness | Good to Excellent |
| Heat Resistance | 300°C |
Application Fields
This product is widely used in the following application fields, providing excellent coloring performance and durability:
- Nylon (PA)
- Polystyrene (PS)
- ABS
- Polycarbonate (PC)
- PET
- PMMA
Usage Instructions
Dose 0.05-0.4% for transparent greenish yellows. Despite the low melting point of 115°C, the dye withstands polymer processing up to 300°C in service and is safe in PS, ABS, PC and PET. For spin dyeing, pre-dissolve or disperse before extrusion. It is the greenest single yellow for shade building with blues.
Frequently Asked Questions
What is Solvent Yellow 179 used for?
Solvent Yellow 179 is mainly used for transparent coloring of Nylon (PA), Polystyrene (PS), ABS, Polycarbonate (PC) and other polymers, and can also be used for masterbatch production.
What are the key properties of Solvent Yellow 179?
Solvent Yellow 179 offers a heat resistance of 300°C, and has light fastness rated Good to Excellent, and has a Methine chemical structure.
What is the CAS number of Solvent Yellow 179?
The CAS number of Solvent Yellow 179 is 80748-21-6.
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