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Products
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Pigment intermediate: Naphthol AS-BI is azo-red paint for benzimidazole-group, the content above 99%,used directly in the synthesis of organic pigments with very broad application.
Naphthol AS-BI
| Product name and structural formula |
5 - [2 - hydroxy -3 - benzoyl amino]-benzimidazole -2 |
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| Use |
| Benzimidazole group of ammonia paint, used in plastics such as polyurethane for ethylene, polyethylene and colored puree and so on with very lightness, heat-resistance and migration stability. |
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Content |
≥ 99% |
Appearance |
Yellow or brown uniform powder |
Insoluble alkali content |
≤ 0.5% |
Moisture |
≤ 0.3% |
Melting range |
360℃ ～ 365℃ |
Output |
300 tons |
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