Optical brightener OB

Inquire Now

Description

Code:

Molecular formula:

C26H26N2O2S

Molecular weight:

430.56

Molecular Structure:

CAS#:

52232-33-4

EINECS#:

Specifications:

1.Chemical name:2,5-bis(5-tertbutyl-2-benzoxazolyl)thiophene
Molecular formula: C26H26N2O2S (As International relative Atom Mass 1997)
Molecular weight: 430.2
C.I.184

2.Specifications

Item	Indices
Appearance	light yellow or milk white powder
Purity	≥ 99.8 %
Melting point	201-202
Ash	≤ 0.1
Volatile content	≤ 0.4%

3. performance Features

1)Pale green powder, tasteless, dissolvable in paraffin, fat, olefin and most organic

solvents.Its spectrum can absorb the maximum wavelength of 375nm with the

maximum transmitted length of 435nm(in ethanol).
2) Good brightening effects and weathering resistance requires a small

quantity but can be widely used

4.Scope of Application

OB is widely used in the brightening of thermoplastics as PVC, PE, PP, PS, ABS,

PMMA, POM and thermosetting plastic, polyester fiber, paint, ink and coating.

5.Aplication Methods

Polyvinyl chloride brightening: 0.01��0.05%
increase radiance: 0.0001��0.001%
Polystyrene 0.0001��0.05%
ABS: 0.01��0.05%
Polyolefin colorless matrix: 0.0005��0.001%
white matrix: 0.005��0.05%

6.Packing Storage

Packed in 25kg×1 tanks, 5kg×2 paper boxes or 1kg(iron cases)×12 paper boxes

at cool and dry places to be protected from light.

packing & Delivery

Product packaging

We have cooperated with experienced shipping forwarders for many years, they arrange the shipment. No matter by express, by air or by sea, we will track the course of the goods all the way, to make sure goods arrive at you on time and in good condition.

Previous PRODUCT NEXT PRODUCT