OB-ER-I
Optical brightener ER-I has a high whitening brightening effect and excellent fastness to sublimation. It is used in whitening of polyester fiber and plastics such as PE, PP, PVC.
Key Features
Technical Specifications
| C.I. NO. | C.I. 199 |
| CAS Number | 13001-39-3 |
| Appearance | Green powder |
| Purity | 99.0% |
| Melting Point | 229-231°C |
| Volatility | ≤0.5% |
| Molecular Formula | C24H14N2 |
Physical Data & Fastness Properties
| Shade/Tone | Reddish |
| Ash | ≤0.03% |
| Heat Resistance | Good |
| Light Fastness | Good |
| Weather Fastness | Good |
Applications
- Polyester fiber
- Polyethylene (PE)
- Polypropylene (PP)
- PVC (polyvinyl chloride)
- Textile industry
Usage Instructions
Plastic industry dosage: 0.02-0.03%. Used in whitening of polyester fiber in emulsion form. Used in whitening of plastics such as PE, PP, PVC.
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