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Malaysia
Contact Person Mr. Suh
85050 SABAH MALAYSIA, KELENTAN, Kelantan
We can supply Optical Brightener OB(CAS: ********5)with lowest factory price,high quality and regular basis.
Specification ofOptical Brightener OB
| Item | Specification |
| Assay | *9.0% |
| Melting point | **6—**3℃ |
| Appearance | Yellow or yellow-green crystalline powder |
| Ash content | 0.1% |
| maximum absorption spectrum wavelength | **5nm(in ethanol) |
| Maximum fluorescence emission wavelength | **5nm (in ethanol) |
| Solubility | Soluble in alkanes, fats, mineral oils, paraffin and most organic solvents. |
More About Optical Brightener OB
CAS: ********5
Standard: Technical Grade
Content: *9% Min.
Capacity:*0MT/month
Loading port: Shanghai,Tianjin, Qingdao
Synonyms: 2,*-Bis(*-tert-butyl**-benzoxazolyl)thiophene; Optical Brightener C.I.**4; Optical Brightening Agent OB; Fluorescent Brightener **4
MF：C*6H*6N2O2S
MW: **0.*6
Use OfOptical Brightener OB
Good whitening agent for PVC,PS,PE,PP,ABS, PMMA, POM, Thermoplastic, thermoset plastic, Acetate fiber, paint, coating and printing ink, etc.
Amount of Optical Brightener OB added per **0kg polymer (reference dosage):
| PVC: | Whitening: 0.***0.*5% (****0g)
Transparent: 0.*****0.**1% (0.**1g) (improved brightness) |
| PS: | Whitening: 0.**1% (1g)
Transparent: 0.*****0.**1% (0.**1g) |
| ABS: | Natural color: 0.*1—0.*5%（*0g**0g）(It can
effectively eliminate the inherent yellow in ABS)
Whitening: 0.*1—0.*5（*0g**0g） |
| PE, PP: | Whitening:
0.**5—0.*5% （5g**0g）
Transparent: 0.***5—0.**1% （0.5g*1g） |
PS: When adding any UV absorbent to the polymer, the optimal dosage of fluorescent whitening agent OB should be adjusted properly.
Package OfOptical Brightener OB
*5kg/drum, or according to the customersdemand
Storage: Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down
