Product Name: Optical Brightener OB
Chemical Name: 2,5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular Formula: C26H26N2O2S
Molecular Weight: 430.2
UV absorption wavelength: 357nm
Cas No.: 7128-64-5
C.I. No.: 184
EC No.: 230-426-4
Specifications:
Appearance light yellowish green powder
Melting Point 198-202
Purity â?¥98.5%
Color Shade Blue
Fineness â?§400 mesh
Water insoluble Content â?¦0.5%
Optical brightener OB is a kind of benzoxazole compound, it is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze.
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.
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.
