91-71-6
Fluorescent Brightener 52
CAS: 91-71-6
Molecular Formula: C14H17NO2
91-71-6 - Names and Identifiers
91-71-6 - Physico-chemical Properties
| Molecular Formula | C14H17NO2 |
| Molar Mass | 231.29 |
| Density | 1.122 |
| Melting Point | 70-73 ºC |
| Flash Point | 152 ºC |
| Water Solubility | 微溶 |
| Solubility | Methanol |
| Appearance | White-like to yellow to beige powder |
| Storage Condition | Room Temprature |
| MDL | MFCD00006864 |
91-71-6 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
91-71-6 - Reference
| Reference Show more | 1. He Zhi Hua, Zuojun Feng, Xiong Ma Jian, Zhu Bijun. Determination of fluorescent whitening agents in pharmaceutical composite membranes by high performance liquid chromatography [J]. Journal of Pharmaceutical Analysis, 2020,40(09):1645-1652. |
91-71-6 - Establishment of qualitative and quantitative determination method of fluorescent whitening agent in plastic products
Author:
tan Wang Qunwei , schdimin , Huang Tongren
Abstract:
The maximum excitation wavelength and maximum emission wavelength of different plastic fluorescent whitening agents were determined by fluorescence method, and the qualitative analysis method of plastic fluorescent whitening agents was established; the conditions for determining the content of plastic fluorescent whitening agent OB solution by fluorescence method are as follows: excitation wavelength of 369nm, emission wavelength of 435 nm, linear range of 0.12~6.0 mg/L, A quantitative analysis method of plastic fluorescent whitening agent OB was established. The results show that the fluorescence method is a simple and effective method for the qualitative and quantitative determination of plastic fluorescent whitening agent.
Key words:
fluorescence; Fluorescent brightener; Plastic
DOI:
CNKI:SUN:SLGY.0.2011-06-015
cited:
year:
2011
Last Update：2024-01-02 23:10:35
91-71-6 - New progress in research and application of fluorescent brighteners for textile
from VIP
Author:
Sun, Ocean , Zhang Jianfei , Jixian , Yu Zhicai , Cao Chengbo ,SUNHai-yang,ZHANGJian-fei,GONGJi-xian,YUZhi-cai,CAOCheng-bo
Abstract:
The main varieties of fluorescent whitening agents used in textile printing and dyeing are introduced (including bistriazine amino stilbene fluorescent whitening agent, stilbene biphenyl fluorescent whitening agent, bisbenzoxazole fluorescent whitening agent, stilbene benzene fluorescent whitening agent, pyrazoline fluorescent whitening agent, coumarin fluorescent whitening agent), and according to the different types of fiber, lists the types of whitening agent used; the development status of fluorescent brighteners for textile dyeing and finishing is reviewed, and the development trend of brighteners is prospected.
Key words:
fluorescent brightener textile category Development
DOI:
10.3969/j.issn.1005-9350.2014.03.017
cited:
year:
2014
Last Update：2023-08-16 22:08:29
91-71-6 - Study on ultraviolet absorption method for determination of fluorescent whitening agent ER(C.I. Fluorescent whitening agent 199)
from VIP Journal Professional Edition
Author:
Abstract:
UV absorption is an important index to control the quality of fluorescent whitening agent. I. Fluorescent whitening agent 199) dissolution solvent, maximum absorption wavelength, solution concentration selection test, determine the use of N,N-dimethylformamide (DMF) as the initial solvent, ethanol as the solvent for further dilution; determine the maximum absorption wavelength (& lambda;max = 364nm; And for the difference of the active ingredients of the fluorescent whitening agent ER raw powder and common products, different mass concentration solutions were used (4mg/L for the original powder and 16ms/L for the common product). According to these conditions, the determination method of UV absorption of fluorescent whitening agent ER raw powder and common products was determined. The problems that should be paid attention to in the determination process are also briefly introduced. The method is simple, easy and rapid, and is suitable for the quality control and inspection of products in the production and use units of fluorescent whitening agent ER.
Key words:
DOI:
10.3969/j.issn.1004-0439.2010.01.015
cited:
year:
2010
Last Update：2023-08-16 22:08:29
91-71-6 - Application of fluorescent brightener in papermaking
from Wanfang
Author:
Abstract:
introduced the principle of fluorescent whitening and the varieties and characteristics of fluorescent whitening agents used in the paper industry, described in the paper pulp whitening, various factors and coping methods affecting whitening effect in sizing whitening and coating whitening.
Key words:
fluorescent brightener papermaking apply
DOI:
JournalArticle/5aeadf3bc095d70944f6c306
cited:
year:
2007
Last Update：2023-08-16 22:08:29
91-71-6 - Research progress on detection technology of fluorescent whitening agents in fiber products
from VIP
Author:
Ni Bing pick ,NI,Bing-xuan,Guangzhou,Fiber,Product,Testing,and,Research,Institute
Abstract:
fluorescent whitening agent is a commonly used substance for brightening fiber products. The mechanism, types and applicability of fluorescent whitening agents for fiber products are introduced. The testing standards and the research and development of testing technology for fluorescent whitening agents for fiber products are described in detail, and fiber products on the limitations of fluorescent whitening agent requirements.
Key words:
Test fluorescent brightener detection method fluorescence brightness UV spectrophotometry high performance liquid chromatography standard
DOI:
CNKI:SUN:YIRA.0.2017-20-014
year:
2017
Last Update：2023-08-16 22:08:29
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View History
91-71-6
9011-06-7
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3,6-Dichloroimidazo[1,2-b]pyridazine
133891-76-6
26672-22-0
N,N-Diethylaminomethyltrimethylsilane
Mercury
2530-87-2
10377-58-9
53572-98-8