Solvent Red 111
Solvent Red 111 (Transparent Red GS) is a classic anthraquinone solvent dye with a bright yellowish red shade and a melting point of 170°C. It is one of the most widely used economy grades among oil soluble dyes for plastics, offering high color strength at low cost. Melting at about 170°C, it withstands processing up to 300°C across PS, ABS, SAN and PMMA systems. Its clean transparent red makes it a workhorse for PS, PMMA and ABS coloring.
Key Features
Technical Specifications
| Trade Name | Transparent Red GS |
| C.I. NO. | 60505 |
| CAS NO. | 82-38-2 |
| EU NO | 201-417-2 |
| Chemical Group | Anthraquinone |
| Solubility | Excellent in organic solvents |
| Melting Point | 170°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 0.05-0.5% in PS, ABS, PMMA and SAN. The dye withstands 300°C processing for full shade stability, though avoiding prolonged hot-runner residence is still good practice. For deeper reds blend with Solvent Red 146 or 179. Pre-mixing with pellets gives uniform color at such low additions.
Frequently Asked Questions
What is Solvent Red 111 used for?
Solvent Red 111 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 Red 111?
Solvent Red 111 offers a heat resistance of 300°C, and has light fastness rated Good to Excellent, and has a Anthraquinone chemical structure.
What is the CAS number of Solvent Red 111?
The CAS number of Solvent Red 111 is 82-38-2, and its Colour Index number is C.I. 60505.
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