12768-91-1
Kayaphor S
CAS: 12768-91-1
Molecular Formula: C40H40N12O16S4.4Na
12768-91-1 - Names and Identifiers
| Name | Kayaphor S |
| Synonyms | 87 Kayaphor S fluorescent brightener 87 Optical Brightener BA(C I 113) Fluorescent brightening agent 87 Fluorescent Brightener 87 (Technical Grade) |
| CAS | 12768-91-1 |
12768-91-1 - Physico-chemical Properties
| Molecular Formula | C40H40N12O16S4.4Na |
| Molar Mass | 1165.04 |
| Storage Condition | 2-8℃ |
| Use | Fluorescent whitening agent is a colorless organic compound which can produce fluorescence, and can improve the whiteness and luster of substances. Mainly used in textile, paper, plastics and synthetic detergents and other industries. |
12768-91-1 - Fluorescent whitening agent
from hownet
Author:
Abstract:
There are a large number of white objects in life, such as paper, aluminum foil, painted white walls and ceiling, milk, barium sulfate precipitation, chalk, magnesium hydroxide, chemically bleached cotton waist and Sari, after the wash blue (dark blue paint) finishing ordinary white clothing, brilliant white or extra white clothing, etc. Although these are all called white objects, their whiteness varies. Some of them appear white and slightly yellow, the other
Key words:
DOI:
10.3969/j.issn.1007-6867.2009.01.020
cited:
year:
2009
Last Update：2024-01-02 23:10:35
12768-91-1 - Determination of fluorescent whitening agents in plastic products of food contact materials by high performance liquid chromatography with fluorescence detection
Author:
jiao Yanna , Dinley , to be kind , li hui , Wang Libing
Abstract:
A high performance liquid chromatography-fluorescence detection method was developed for the simultaneous determination of fluorescent whitening agents in plastic food contact materials (food packaging bags). The samples were extracted with 20ml chloroform as extraction agent, ultrasonic extraction for 30min, extraction temperature was 40 ℃, and quantitative analysis was performed by high performance liquid chromatography. Using Eclipse XDB-C18(250mm × 4.6, 5 μ) as analytical column, 5mmol/L ammonium acetate solution and acetonitrile as mobile phase, gradient elution, fluorescence excitation wavelength of 350nm, the emission wavelength was 430nm. The results showed that 4 kinds of fluorescent brighteners 4,4 '-BIS [2-(o-cyanophenyl) vinyl] benzene (1,4-bis(4-cyamostyryl)benzene,C. 1.199),1,4-bis (2-benzoxazole) naphthalene (1,4-bis (2-benzoxx axolyi) naphthalene,C. 1.367),4,4' bis(2-methoxystyryl)biphenyl (4,4 '-bis(2-methoxystyryl)biphenyl,C.I.378) and 2, 5-bis (5-tert-butyl-2-benzoxazolyl) thiophene (2,5-thiofenediyl bis(5-tert-butyl-1,3-benzoxazole),C. The detection limit (S/N = 3) was 0.3,0.1,0.05,0.14mg/L, respectively. 1.0,0.4,0.2,0.5mg/L, respectively, the recovery range is 78.9%-101.1%, the relative standard deviation is less than 10%, good linear relationship. The method is simple, accurate and sensitive, and can meet the daily detection of fluorescent whitening agents in food packaging materials and plastic products for import and export.stowed
Key words:
high performance liquid chromatography fluorescence detection fluorescent brightener food contact materials plastics
DOI:
10.3724/SP.J.1123.2012.08050
cited:
year:
2013
Last Update：2023-08-16 22:05:47
12768-91-1 - Study on fluorescent whitening agent for improving insecticidal effect of insect Virus
from VIP Journal Professional Edition
Author:
Yan Donghua , Chen Changjie ,Martin Shapiro
Abstract:
fluorescent whitening agent is a kind of chemical factor recently discovered in biological control research, which can significantly improve the insecticidal ability of insects Virus, accelerate the death rate of insects by Virus, and improve the protective effect of insects Virus on ultraviolet light. The effect of the increase in the forest is obvious and stable. Fluorescent whitening agent can be developed as an important adjuvant to effectively improve and improve the continuous control of agricultural and forestry pests by insect Virus preparation. Although the mechanism by which fluorescent whitening agents can significantly enhance the virulence of insect Virus is not clear, the elucidation of the mechanism may provide a new way or even Theory for biological control of agricultural and forestry pests. This paper reviews the research progress on the application of fluorescent whitening agent to improve insect Virus toxicity and the practical application of agricultural and forestry pest control in recent 10 years. It is suggested that the fluorescent whitening agent can expand the host range by Virus, change the route of insect Virus infecting the host and induce the latent infection of insect Virus. The problems in the application of fluorescent whitening agents are also discussed.
stowed
Key words:
fluorescent whitening agent; Insect Virus; potentiation
DOI:
10.3321/j.issn:1001-7488.2003.01.025
cited:
year:
2003
Last Update：2023-08-16 22:05:47
12768-91-1 - Practical technique of fluorescent whitening agent
from superstar e-book
Author:
Abstract:
This book mainly describes the concept of fluorescent whitening agent, whitening principle, naming, classification, synthesis technology, commercial processing technology, in textile, paper, detergent, the application and processing formula of plastics and other industries, and the application and processing formula of fluorescent whitening agent, plastics and other industries, and the quality inspection of fluorescent whitening agent products and people are more concerned about the use of safety and the impact on the environment and other issues are described in detail, at the same time, the bookstore is accompanied by a list of the current national standards and industry standards for fluorescent whitening agents. This book can be used for fluorescent whitening agent researchers, production personnel, product quality inspection personnel to read, but also for printing and dyeing, paper making, synthetic detergent, plastic processing involving fluorescent whitening agent enterprise technical personnel reference.
Key words:
publication date:
2006
ISBN:
7-5064-3917-4
cited:
Last Update：2023-08-16 22:05:47
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