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Fluorescent brightener 85

CAS: 12224-06-5

Molecular Formula: C36H34N12Na2O8S2

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yinguangzhengbuaji - Names and Identifiers

Name Fluorescent brightener 85
Synonyms yinguangzhengbuaji
Optical Brightener VBL
fluorescent brightener 85
Fluorescent brightener 85
optical brightenerVBL(OBA85)
Optical Brightening Agent Vbl
Fluorescent brightening agent 85
Fluorescent brightener VBL (C.I.85)
Disodium 4,4'-bis[(4-anilino-6-hydroxyethylamino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulphonate
disodium 2,2'-(E)-ethene-1,2-diylbis[5-({4-[(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl}amino)benzenesulfonate]
CAS 12224-06-5
EINECS 602-364-1
InChI InChI=1/C36H36N12O8S2.2Na/c49-19-17-37-31-43-33(39-25-7-3-1-4-8-25)47-35(45-31)41-27-15-13-23(29(21-27)57(51,52)53)11-12-24-14-16-28(22-30(24)58(54,55)56)42-36-46-32(38-18-20-50)44-34(48-36)40-26-9-5-2-6-10-26;;/h1-16,21-22,49-50H,17-20H2,(H,51,52,53)(H,54,55,56)(H3,37,39,41,43,45,47)(H3,38,40,42,44,46,48);;/q;2*+1/p-2/b12-11+;

yinguangzhengbuaji - Physico-chemical Properties

Molecular FormulaC36H34N12Na2O8S2
Molar Mass872.8403
Storage Condition贮存在阴凉、干燥的库房内，避光，贮存期12个月。
Physical and Chemical PropertiesThis product is light yellow powder, is an anionic compound, soluble in soft water (water can reach more than 80 times) when there is a coagulation phenomenon when dissolved, diluted with water and fully stirred to obtain transparent liquid. Its Bath dyeing need neutral or slightly alkaline, can be mixed with anionic and non-ionic active agent, anionic dye, not with cationic dye, cationic surfactant synthetic resin shrinkage with Bath.
UseMainly used for whitening cellulose fiber fabrics and paper, brightening light colored fabrics, and whitening discharge printing.
CautionBasically non-toxic. It will not cause acute toxic harm to the human body within the concentration range commonly used.

yinguangzhengbuaji - Nature

Open Data Verified Data

light yellow powder, which is an anionic compound, can be dissolved in soft water (the amount of water can reach more than 80 times), and there is a coagulation phenomenon at the beginning of dissolution. After dilution with water and thorough stirring, a transparent liquid can be obtained. The Bath dyeing needs to be neutral or slightly alkaline, and can be mixed with anionic and Nonionic active agents and anionic dyes, and should not be used in the same bath with cationic dyes and cationic surfactant synthetic resin.

Last Update：2024-01-02 23:10:35

yinguangzhengbuaji - Preparation method

Open Data Verified Data

1. Add 30kg of DSD acid into 40kg of water, heat to 90 ℃, and neutralize with 10% pure alkali solution until pH=7-8. Add 1.3 more parts of activated carbon, stir for decolorization, remove carbon residue by suction filtration, and let the filtrate be used (the filtrate is sodium DSD acid salt).

2. Put 30 parts of melamine chloride into the reaction vessel, add 150 parts of crushed ice, vigorously stir and cool to -2 ℃, add 0.2 parts of O (10% aqueous solution) and 0.2 parts of hydrochloric acid, and mix well. Slowly drop the above prepared DSD acid sodium salt solution under stirring, and control the temperature at 0~5 ℃. It is found that the foam is defoamed with secondary octanol at any time, and 10% soda ash solution is gradually added to keep the pH value between 4~4.5. When the pH value no longer decreases, add 14.8 parts of aniline dropwise. During the dropwise addition of aniline, the pH value can be controlled between 4 and 4.5 using pure alkali solution. After the dropwise addition, react for about 1 hour. Cool down, let it stand and filter. The filtrate is acidified with hydrochloric acid to a pH value of 1-1.5, and the precipitate is VBL whitening agent. Knead and dry the filter cake with an appropriate amount of soda ash powder, and add 20 parts of sodium hydroxide to obtain the finished product.

Last Update：2023-12-21 12:38:03

yinguangzhengbuaji - Use

Open Data Verified Data

The fluorescent whitening agent VBL belongs to a stilbene triazine type derivative, and its fluorescent hue is cyan and slightly purple. And low price, good affinity, high fluorescence intensity, widely used in industry. It is mainly used for whitening and brightening of bleached cotton fabrics, paper whitening and whitening of detergents, coatings and other industries. Its dyeing and dye similar to salt, sodium sulfate, etc. can be used to promote dyeing, with levelling agent slow dyeing, temperature and time and the degree of dyeing are closely related. Whitening agent VBL can be mixed with anionic and Nonionic Surfactants, Anionic dyes, coatings and the like, and should not be used in the same bath as cationic dyes, surfactants and synthetic resin extractives.

Last Update：2022-01-01 09:31:08

yinguangzhengbuaji - Reference Information

EPA chemical information Information provided by: iaspub.epa.gov (external link)
Fluorescent brightener VBL Fluorescent brightener VBL is a fluorescent brightener obtained by condensation of diaminosilbenzoate with cyanuric chloride, aniline, monoethanolamine, etc. The appearance is light yellow powder, anionic type, and the color light is blue light and purple. It is soluble in soft water, and there is condensation when it begins to dissolve. When diluted with water (80 times water), it can be fully stirred to obtain a transparent solution. When dissolved, it is advisable to use micro-alkali or neutral water. This product can be mixed with anionic and non-ionic surfactants, and can also be mixed with anionic dyes and pigments such as direct dyes and acid dyes, but it cannot be mixed with cationic dyes, cationic surfactants and synthetic resin primers in the same bath. The dye bath should be neutral or alkaline, with pH value of 8~9 being the most suitable. It can resist acid to pH value of 6, alkali to pH value of 11, hard water to 300ppm, free chlorine to 0.25%, but not heavy metal ions such as copper and iron. The dosage should be appropriate, otherwise the whiteness will be reduced or even yellowed when excessive. This whitening agent can resist the reduction of carved white blocks.
The fluorescent whitening agent VBL is mainly used for whitening cellulose fabrics and paper, brightening light-colored cellulose fabrics, and whitening of pull-out printing. It is also widely used in soaps and synthetic detergents to increase the whiteness of the washed matter. The dyeing performance of fluorescent whitening agent VBL is basically similar to that of dyes. Inorganic salts such as salt and sodium sulfate can be used to promote dyeing, and leveling agent is used as retarding agent. Temperature and time also affect the degree of dyeing.
There are four methods when the whitening agent VBL is used as whitening and whitening agent for cotton fabrics:(1) dipping dyeing whitening (2) padding whitening (3) sizing whitening (4) soap bath whitening
When fluorescent whitening agent is used as light-colored fabric whitening agent, white printing whitening agent and white ground cloth whitening agent, the general dosage of fluorescent whitening agent VBL is 1~2g/L.
the following are the structural formulas of several commonly used fluorescent whitening agents:
fig. 1 is the chemical structural formula of fluorescent whitening agent BA, fluorescent whitening agent DT and fluorescent whitening agent.
use is mainly used for whitening cellulose fiber fabrics and paper, brightening light-colored fabrics and whitening printing. The dyeing property of this product is similar to that of dyes. It can be promoted by salt, sodium sulfate, etc. It is slowly dyed with leveling agent. The temperature is closely related to the time and the degree of dyeing. This product has low price, good affinity and high fluorescence intensity, and is widely used in industry.
Used as a whitening agent for cotton fiber and pulp, and also used in detergent, paint, plastic and other industries
production method 30 kg DSD acid is put into 40 kg of water, heated to 90 ℃, and neutralized with 10% soda ash solution to pH = 7~8. Add 1.3 parts of activated carbon, stir and decolorize, suction and filter to remove carbon residue, filtrate to be used (filtrate is sodium DSD acid salt). Put 30 parts of trichloride into the reaction kettle, add 150 parts of crushed ice, stir strongly and cool to -2 ℃, add 0.2 parts of leveling agent O(10% aqueous solution), 0.2 parts of hydrochloric acid, and make even. Slowly drop the sodium DSD acid solution prepared above under stirring, control the temperature at 0~5 ℃, find foam, defoam with secondary octanol at any time, and gradually drop 10% soda ash solution to keep the pH value between 4~4.5. When the pH value no longer drops, 14.8 parts of aniline are added dropwise. During the dropwise addition of aniline, soda ash solution can be used to control the pH value to 4~4.5. After dropwise addition, the reaction is carried out for about 1 h. Cooling, standing filtration, filtrate with hydrochloric acid acid to adjust the pH value = 1~1.5, the precipitate is VBL whitening agent. The filter cake is kneaded and dried with an appropriate amount of soda ash powder, and 20 parts of sodium sulfate are added to obtain the finished product.
Last Update：2024-04-09 02:00:06
yinguangzhengbuaji
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CAS: 12224-06-5
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CAS: 12224-06-5
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
Hubei YoungXin Pharmaceutical Tech Co.,Ltd.
Product Name: Fluorescent Brightener 85 Request for quotation
CAS: 12224-06-5
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052 Click to send a QQ message
Wechat: 15671228036
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: Fluorescent brightener 85 Request for quotation
CAS: 12224-06-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Yuanye Bio-Technology Co., Ltd.
Spot supply
Product Name: Fluorescent brightener 85 Visit Supplier Webpage Request for quotation
CAS: 12224-06-5
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
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