Product Name: Optical brightener OB-1(C.I. 393)
CAS No.: 1533-45-5
EINECS No.: 216-245-3
Other Name: 4,4'-Bis(2-benzoxazolyl)stilbene
MF: C28H18N2O2
Appearance: Bright yellow crystalline powder
Purity: =99.95%
Melting point : 300~380 °C
Volatile:
Product Name: Optical brightener OB-1T
Other Name: Fluorescent brightener
Appearance: bright yellow crystalline powder
Purity: =99.95%
Melting point 250~310 °C
Volatile:
Product Name: Optical brightener KCB(C.I.367)
CAS No. :5089-22-5;63310-10-1
EINECS No.: 225-803-5
Other Name: 1,4-bis(benziazolyl-2-yl-)naphth-alene
Molecular formula: C24H14N2O2
Appearance: Yellowish green crystalline powder
Purity: =99.9%
Melting point: 210~212°C
Volatile:
Product Name: Optical brightener KSN(C.I. 368)
CAS No. :5242-49-9
EINECS No.: 226-044-2
Other Name: 4.4-bis(5-methyl-2-benzoxoazol)-ethylene;
Molecular formula: C29H20N2O2
Appearance: Yellow crystalline powder
Purity: =99.95%
Melting point: 269ºC~271°C
Ash: =0.1%
Volatile: =0.5%
Fineness: = 120 mesh
Package :20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.
Applications:
It is used in thermoplastic plastics PVC, PE, PP, PS, ABS, SAN, SB, CA, PA, PMMA, acrylic resin, polyester fiber paint, coating the brightening of printing ink.
Properties:
Bright yellow crystal powder, odorless, Decomposition temperature is large than 275°C. It is hard to dissolve in water.
Dosage: Fluorescent brightener KSN is commonly used in the amount of 0.01-0.03%, that is, each 100kg of the materials, the fluorescent brightener KSN takes 10g-30g or can be adjusted according to the requirements of the product or test.
Storage: To avoid light, can be stored in cool and dry place for 24 months.
Product Name:Optical brightener OB (C.I. 184)
MF: C26H26N2O2S
EINECS No: 230-426-4
CAS No: 7128-64-5, 4404-43-7
Other Name: Fluorescent brightener
Appearance: Light green powder
Purity: =98%
Melting point: 198~200 °C
Volatile: