Fluorescent Brightener 208
Name:C.I.Fluorescent Brightener 208,C.I.40639
Molecular Structure: Stilbenes
Molecular Formula:C36H34N12Na2O6S2
Molecular Weight: 840.84
CAS Registry Number:24565-13-7
Manufacturing Methods :1,2-Bis(4-amino-2-sulfophenyl)ethene and 2,4,6-Trichloro-1,3,5-triazine (2 Moore) condensation, again with aniline (2 Moore) condensation, then and Ethanamine (2 Moore) condensation.
Properties and Applications:red light blue. Soluble in water. Directness. Mainly used for cotton, soap and detergent.
Acid-proof | Alkali-proof | Chlorine bleaching | Sodium hyposulfite | Light Fastness | Oxygen bleaching | Soaping |
Good | Well | Well | Well | Good | Well |
List of Suppliers:
Photine LTD(Hickson & Welch Ltd)
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