We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.
The cookies that are categorized as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ...
Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.
Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Advertisement cookies are used to provide visitors with customized advertisements based on the pages you visited previously and to analyze the effectiveness of the ad campaigns.
CAS: 7128-64-5
Độ tinh khiết: 99%
Molecular Formula: C26H26N2O2S
Molecular Weight: 430.56
EINECS: 230-426-4
Storage Period: Sealed storage
Synonyms: bbot150; DERIVATIVE OF STILBENE DISULFONIC ACID; BBOT; 2,5-BIS(5-TERT-BUTYL-BENZOXAZOL-2-YL)THIOPHENE; Fluorescent whitening agent OB; Optical Brightener OB; EUTEX-OB RC EXTRA
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene is yellow-green powder. The melting point is 200 ~ 201℃, and the decomposition temperature is greater than 220℃. Insoluble in water, soluble in alkanes, fats, mineral oils, waxes and common organic solvents.
Optical Brighter OB used for brightening polyvinyl chloride, polystyrene, ABS resin, polyolefin and polyester, also used for acetate fiber, polymethyl methacrylate, foam leather whitening. Also used in varnishes, paints, UV-curable coatings, printing inks, fats, oils, packaging materials. It can be used as anti-counterfeiting mark in printing ink. In photography, it can be used to improve the whiteness of the non-image area of the photo, which can be converted into fluorescence when the photo is irradiated by ultraviolet light. Produce brightening effect.
| Sản phẩm Tên | Quang brightener OB (C.I. 184 / C.I.28 ) | |
| CUT | C26H26N2O2S | |
| EINECS No | 230-426-4 | |
| CAS No | 7128-64-5, | |
| Chemical Name | 2,5-bis(5-tert-butyl benzoxazoly-2’-)thiophene | |
| Sự xuất hiện | Light green powder | |
| Độ tinh khiết | Ít 98% | |
| Điểm nóng chảy | 198~202 °C | |
| Volatile: | <0.5% | |
| Gói | 20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers’ requirements. | |
| Ứng dụng:
It is widely used in thermoplastic such as PVC, PE, PP, ABS, PS, and unsaturated resin and paint, ink and oil tan trong nước coatings. |
||
| Properties:
The product is light green or green powder, non-toxic and tasteless, can dissolve in alkane, fat, mineral oil, paraffin and most organic solvents, the absorption spectra of the largest value for 375 mm (in ethanol). |
||
| Dosage:
PVC whitening: 0.01~0.05%; Polystyrene :0001~0.001%; Polyolefin matrix: 0.0005~0.001% |
to improve the light intensity: 0.0001~0.001% ABS:0.01~0.05%; White matrix: 0.005~0.05% |
|
Mainly used for brightening synthetic fiber and plastic products, and has obvious effect on colorful plastic products, and is also used for PE, PP, PVC, PS, ABS and so on.
25/túi
VI 
EN 
ZH 
DE 
ES 
KO 
PT 
FR 
TH 
AR 
IT 
NL 
RU 
