CAS 7128-64-5 Fluorescent Optical Brightener Agent Ob-1 for Textile/Paper

• CAS No.: 1533-45-5
• Formula: C28h18n2o
• EINECS: 216-245-3
• Appearance: Powder
• Usage: Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Leather Auxiliary Agents, Coating Auxiliary Agents, Plastic Auxiliary Agent
• Color: Yellow
• Model NO.: OB-1
• Grade: Industrial Grade
• Product Name: Fluorescent Brightener
• Other Name: Optical Brightener, Optical Brightener Agent, Ob
• Model No.: Ob
• Purity: >99%
• Chemical Name: PVC Impact Modifier
• Volatile Content: ≤0.5%
• Application: Plastic, Rubber, etc.
• Sample: Free
• Storage: Store in a Cool, Dry Place
• MOQ: 1 Ton
• Certification: ISO
• Transport Package: Drum
• Specification: 25kg/drum, customized package
• Trademark: KANGXIN
• Origin: China
• HS Code: 32042000
• Production Capacity: 5000tons/Month

Product Description

Main Products

 

Product Description

Fluorescent Brightener

Fluorescent whitener is a fluorescent dye, or white dye, and a generic term for a class of compounds. It is characterized by its ability to stimulate incident light to produce fluorescence, so that the dyed substance obtains a sparkling effect similar to that of fluorite, making the substance white to the naked eye.

 

 

 

 

Specifications

Item	Value
Product name	Optical Brightener Agent
Other Name	Fluorescent brightener,Fluorescent Whitening
CAS NO.	1533-45-5
EINECS No.	216-245-3
Appearance	Yellowish green powder
Application	Paper, plastic, leather, detergent, dyeing and other industries
Grade	Industry Grade
Main Products(%wt)	≥99
Melting Point(ºC)	328.6
Fineness(μm)	Pass
Ash Content(%wt)	0.29
Moisture Content(%wt)	0.2
Sample	Free
Package	25 kg/bag,25 kg/drum,customized packaging.

Fluorescent whitening agent OB-1

Appearance	Yellow-green crystal powder
Content	99%
Melting Point	357-361ºC
Volatile content	≤0.5%
Molecular Weight:	414.4
Max UV Absorption Wavelength:	374 nm
Max Optical Emitting Wavelength:	434 nm

Fluorescent whitening agent 127

Appearance	Light-yellow-green crystal powder
Content	99%
Melting Point	216-222ºC
Volatile content	≤0.5%
Color light	Blue-Violet Light
CAS NO	40470-68-6
Decomposition temperature	280ºC

Fluorescent whitening agent OB

Appearance	Yellow-green crystal powder
Content	99%
Melting Point	190-200ºC
Volatile content	≤0.5%
Color light:	Blue Light
CAS NO	7128-64-5
Decomposition temperature :	220ºC

Fluorescent whitening agent KCB

Appearance	Yellow-green crystal powder
Content	99%
Melting Point	210-212ºC
Volatile content	≤0.5%
Color light:	Blue-Violet Light
CAS NO:	5089-22-5
Decomposition temperature :	250ºC

 

 

Application

According to the chemical structure can be divided into five categories:
1, diphenylethylene type: used in cotton fiber and some synthetic fibers, paper, soap and other industries, with blue fluorescence;
2,Coumarin type: with the basic structure of coumaron'e, used in cellulose, PVC plastics, etc., with strong blue fluorescence;
3,Pyrazoline type: used in wool, polyamide, acrylic and other fibers, with green fluorescence;
4, benzoxazole type: used in acrylic and other fibers and polyvinyl chloride, polystyrene and other plastics, with red fluorescence;
5, benzodicarbonimide type for polyester, acrylic, nylon and other fibers, with blue fluorescence.

 

 

Packaging & Shipping

Company Profile

Tianjin Kangxin Import and Export Co., Ltd. is located in Tianjin City, our products have a competitive advantage in the market. We have long-term cooperation with key domestic development enterprises such as Kunlun Petrochemical, Sinopec, Zhongtai Group, Non-ferrous Metal Mining (Group), Junzheng Group and Longbai Group. Our products include paraffin wax,paraffin oil,taitanium dioxide, PVC additives, rubber raw materials and other chemical products, etc. 
Over the years, our company has been striving to achieve good quality and low prices, which has won the support and trust of many customers. We look forward to working with you and establishing a win-win relationship with you. Please rest assured that we will make you happy.

FAQ

Q:What is your packing? 
A: The products are usually packaged in bags, cartons and drums. Product packaging varies according to the product.We accept custom packaging.
Q:What is the delivery time? 
A: Products are in stock. Shipping time depends on the type and quantity of the product. About 7-15 days. 
Q:What is the payment terms?
A: TT or spot letter of credit. The payment method is determined by negotiation.
Q:What is your transport? 
A: Normally by sea ,by truck or by Rail;Urgently by air . 
Q:Can I get the sample before placing the order? 
A: Of course,we can provide samples for your test.You just need to tell us the address and the quantity of samples you need.
Q:Can you give me a discount?
A: Of course, we will offer you the best discount according to the quantity of your order.
Q:Where is your shipping port?
A:  Tianjin port,Qingdao port,Ningbo port and Shanghai port.