Product Name: Optical Brightener OB-1
Chemical Name: 2,2'-(Vinylenedi-p-phenylene)bisbenzoxazole
Molecular Formula: C28H18N2O2
Molecular Weight: 414.4
UV absorption wavelength: 374nm
Cas No.: 1533-45-5
C.I. No.: 393
EC No.: 216-245-3
Specifications:
Appearance bright yellowish/greenish crystal powder
Melting Point 357-361
Purity â?¥98.5%
Color Shade Blue
Fineness â?§200 mesh
Water insoluble Content â?¦0.5%
Properties:
Optical brightener OB-1 is crystallized substance, has strong fluorescence. It is odorless, hard to dissolve in water.
It can be used for whitening polyesters, nylon fibre and various plastics such as PET, PP, PC, PS, PE, PVC, etc.
Package:
25kg per carton drum with double layer PE bag inside, or adjust according to clients demand.
Storage:
Store at cool and dry place.
Expiry date: 24 months.