Chemical name:2,5-bis-(benzoxazole-2-yl)thiophene
Physical and chemical properties
| [Structural formula] | |||
| [Molecular formula] | C30H22N2O2 | [Molecular Weight] | 442 |
| [C.1.NO.] | 368 | [CAS No.] | 5242-49-9 |
| [Appearance] | Yellow powder | ||
| [Content] | ≥98% | ||
| [Melting point] | 269-271℃ | ||
| [Purpose] | The product is a benzoxazole compound, being one of the extra-excellent fluorescent whitening agents, and an upgraded product. It features few consumption and excellent whitening property, praised as "King of Whitening Agents". | ||
In general,the use quantity is 0.01-0.03%(relative to weight of materials bo be whitened).
It is recommended to use 2-30g of agent to whiten or brighten 100kg of plastic products, and 0.5-3g of agent for whitening or brightening 100kg of transparent plastics.
It applies to processes like extrusion forming, injection moulding, anc film-drawing.
