1,4-Bis(2-benzoxazoly)naphthalene
Fluorescent Brightener KCB
CAS: 5089-22-5;63310-10-1
Molecular Formula: C24H14N2O2
1,4-Bis(2-benzoxazoly)naphthalene - Names and Identifiers
| Name | Fluorescent Brightener KCB |
| Synonyms | KCB CL229 FBA 367 C.I. 367 Optical Brightener KCB DIBENZOXAZOYL NAPHTHALENE Fluorescent Brightener 367 FLUORESCENT BRIGHTENER-KCB Fluorescent Brightener KCB C.I.FluorescentBrightener367 Optical Brightening Agent KCB FLUORESCENT WHITENING AGENT KCB Fluorescent Whitening Agent KCB 1,4-BIS-BENZOXAZOLYL-NAPHTHALENE 1,4-Bis(2-benzoxazoly)naphthalene fluorescent brightening agent KCB 1,4-BIS(BENZOXAZOLYL-2-YL)NAPHTHALENE Optical Brightening Agent KCB C. I. 367 1,4-bis(benziazolyl-2-yl-)naphth-alene 2,2'-(1,4-naphthalenediyl)bis-benzoxazol 2,2'-naphthalene-1,4-diylbis(1,3-benzoxazole) Fluorescent Brightener KCB C.I. 367 |
| CAS | 5089-22-5 63310-10-1 |
| EINECS | 225-803-5 |
| InChI | InChI=1/C24H14N2O2/c1-2-8-16-15(7-1)17(23-25-19-9-3-5-11-21(19)27-23)13-14-18(16)24-26-20-10-4-6-12-22(20)28-24/h1-14H |
| InChIKey | WFYSPVCBIJCZPX-UHFFFAOYSA-N |
1,4-Bis(2-benzoxazoly)naphthalene - Physico-chemical Properties
| Molecular Formula | C24H14N2O2 |
| Molar Mass | 362.38 |
| Density | 1.320±0.06 g/cm3(Predicted) |
| Melting Point | 210-212°C |
| Boling Point | 521.9±33.0 °C(Predicted) |
| Flash Point | 263.1°C |
| Water Solubility | insoluble |
| Vapor Presure | 1.8E-10mmHg at 25°C |
| Appearance | Yellow crystal |
| pKa | 1.24±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.731 |
| Physical and Chemical Properties | Appearance: yellow-green crystalline powder |
| Use | It is mainly used for the whitening of synthetic fiber and plastic products, and has a significant effect on the increase of colored plastic products. It is also used for PE, PP, PVC, PS, ABS, etc. |
1,4-Bis(2-benzoxazoly)naphthalene - 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. |
1,4-Bis(2-benzoxazoly)naphthalene - Introduction
Fluorescent Brightener KCB (also known as Fluorescent Brightener 367) is an organic compound with the chemical name 2,2 '-(1,2-ethyldiamino) dibenzo [4,1,3] Disodium thiophene-6-carboxylate. It has the following properties:
1. Appearance: KCB is white to light yellow crystalline powder.
2. Fluorescence: KCB is a fluorescent whitening agent, which can absorb ultraviolet light (wavelength between 340-370 nm) and convert it into visible light (wavelength between 420-480 nm), thereby improving the whiteness and brightness of the object.
The main uses of the Fluorescent Brightener KCB are as follows:
1. Textile industry: As a whitening agent, KCB is widely used in the bleaching and dyeing process of textiles to improve the whiteness of textiles.
2. Synthetic detergent: KCB is also used as an additive, which can make cleaning products such as washing powder and detergent more white and bright.
3. Paper Industry: used for pulp bleaching in papermaking process to improve the whiteness of paper.
There are two general methods for making Fluorescent Brightener KCB:
1. Chemical synthesis method: Synthesis of KCB by chemical reaction. Specific reaction steps and conditions are more complex, mainly involving benzothiophene, formaldehyde and ethylenediamine and other raw materials. This method of synthesis requires high chemical laboratory techniques and equipment.
2. Industrial production method: KCB is usually prepared on a large scale by synthetic method. Common industrial synthetic methods include solvent catalytic synthesis and solid phase synthesis.
regarding the safety information of KCB, the following points should be noted:
1. KCB should avoid contact with strong oxidants during carrying or storage.
2. During use, avoid inhaling dust and avoid contact with skin and eyes. If contact with skin or eyes, should immediately rinse with plenty of water, and timely medical treatment.
3. KCB should be kept away from fire and high temperature, and stored in a cool and dry environment.
4. When using and handling Fluorescent Brightener KCB, follow relevant health and safety regulations and operating guidelines.
1. Appearance: KCB is white to light yellow crystalline powder.
2. Fluorescence: KCB is a fluorescent whitening agent, which can absorb ultraviolet light (wavelength between 340-370 nm) and convert it into visible light (wavelength between 420-480 nm), thereby improving the whiteness and brightness of the object.
The main uses of the Fluorescent Brightener KCB are as follows:
1. Textile industry: As a whitening agent, KCB is widely used in the bleaching and dyeing process of textiles to improve the whiteness of textiles.
2. Synthetic detergent: KCB is also used as an additive, which can make cleaning products such as washing powder and detergent more white and bright.
3. Paper Industry: used for pulp bleaching in papermaking process to improve the whiteness of paper.
There are two general methods for making Fluorescent Brightener KCB:
1. Chemical synthesis method: Synthesis of KCB by chemical reaction. Specific reaction steps and conditions are more complex, mainly involving benzothiophene, formaldehyde and ethylenediamine and other raw materials. This method of synthesis requires high chemical laboratory techniques and equipment.
2. Industrial production method: KCB is usually prepared on a large scale by synthetic method. Common industrial synthetic methods include solvent catalytic synthesis and solid phase synthesis.
regarding the safety information of KCB, the following points should be noted:
1. KCB should avoid contact with strong oxidants during carrying or storage.
2. During use, avoid inhaling dust and avoid contact with skin and eyes. If contact with skin or eyes, should immediately rinse with plenty of water, and timely medical treatment.
3. KCB should be kept away from fire and high temperature, and stored in a cool and dry environment.
4. When using and handling Fluorescent Brightener KCB, follow relevant health and safety regulations and operating guidelines.
Last Update：2024-04-09 21:21:28
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Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Product Name: Fluorescent Brightener 367 Request for quotation
CAS: 5089-22-5
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
CAS: 5089-22-5
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Multiple Specifications
Product Name: Fluorescent Brightener 367 Request for quotationCAS: 5089-22-5
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589
Wechat: +86 19849939632
Product Name: Fluorescent Brightener KCB Request for quotation
CAS: 5089-22-5
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
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