Fluorescent Brightener KCB

Fluorescent whitening agent KCB belongs to the class of dibenzoxazolynaphthalene compounds, with the chemical name 1,4-bis (benzoxazoly-2-yl) naphthalene. It appears as a yellow green crystalline powder with a melting point of 210-212 ° C. This substance is insoluble in water and soluble in conventional organic solvents. It has a maximum ultraviolet absorption peak at a wavelength of 370nm and a blue bright white fluorescence color.
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Product Parameters

Product Name (English)Fluorescent Brightener KCB
CAS No5089-22-5
Physical properties- Yellow green crystalline powder

- Insoluble in water, soluble in conventional organic solvents

Application

- Improve the whiteness of textiles

- Make cleaning products such as laundry detergent and dishwashing liquid whiter and brighter

- Improve the whiteness of paper

Packaging25kg cardboard drum or packaged according to user requirements, then stored in a cool, dry place away from light.

Basic Properties

physical property:

- Density 1.32g/cm ³ (25 ℃)

- Refractive index 1.731

- Volatile matter ≤ 0.5%, ash content ≤ 0.1%

- Stable chemical properties at room temperature and pressure


Spectral characteristics:

- Maximum absorption wavelength 370nm (UV spectrum)

- Maximum fluorescence emission wavelength 434nm

- The fluorescence quantum efficiency reaches 0.89

Main Applications


1. Textile industry: As a whitening agent, KCB is widely used in the bleaching and dyeing processes of textiles to improve their whiteness.

2. Synthetic detergent: KCB is also used as an additive to make cleaning products such as laundry detergent and dishwashing liquid whiter and brighter.

3. Paper industry: Used for bleaching pulp in papermaking processes to improve the whiteness of paper.

Safety Precautions

handle:

·Wear dust masks, safety goggles, and gloves during handling

·Avoid generating dust and prevent inhaling dust

·If there is eye contact, immediately rinse with plenty of water

Storage:

·Store in a cool and dry place, avoiding contact with oxidants, strong acids, and bases

·Seal the container to prevent moisture absorption and contamination

·Stay away from sources of fire and heat

Toxicity and Environment:

·Irritating to the eyes and respiratory system

·Avoid inhaling large amounts of dust

·As a common chemical treatment to avoid environmental pollution

Company Profile

Junteng Chemical is a professional chemical raw materials trading company dedicated to providing customers with one-stop procurement services. Through strict supplier, supply chain, and after-sales management, the company ensures that product quality, transportation, and use meet customer needs. Furthermore, the company's technical team offers customized solutions and support services free of charge.

 

The company has projects in the pharmaceutical, pesticide, petrochemical, construction, food additives, wastewater treatment, adhesives, inks, paints, coatings, plastic and rubber processing, detergent raw materials, fertilizer and textile mills, and more. Junteng Chemical sources products of stable and reliable quality, collaborating with domestic and international companies such as Luxi Group, Weiyuan Chemical, Qilu Petrochemical, Dongying Lihuayi, Yanshan Petrochemical, Sinopec, Shijiazhuang Refinery, Qingdao Petrochemical, Sailboat, Dow Chemical, BASF, South Korea, Taiwan, and Saudi Arabia. Our stable supply, superior product quality, and mature logistics have earned us a wide clientele. We look forward to collaborating with all of you for a mutually beneficial future.

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Company advantages

1

One-Stop Procurement
Platform

We integrate resources across all productcategories, including organic solvents,resins and rubbers, and inorganicchemicals,and strictly control suppliers.supply chains, and after-sales processes toensure stable quality, efficienttransportation,and worry-free use,simplifying your procurement process.

2

Professional Team TechnicalEmpowerment

Equipped with an experienced technicalteam, we provide free personalizedsolutions and professional technicalsupport to customers in varlous industrie,such as pharmaceuticals, petrochemicals,coatings and inks, and sewage treatment,.helping you solve problems and improveefficiency.

3

Global supply ChainSecurity

We work with top domestic and foreignchemical giants such as Luxi Group, QiluPetrochemical, Sinopec, BASF of Germany,and Dow of the United States to establisha stable and reliable high-quality supplynetwork and a mature logistics system toensure timely and safe delivery of
products.

4

Deep Win-Win CooperationConcept

Adhering to the concept of "integrity.immediate action, professionalism,innovation and win-win" and taking"customer success and altruism" as ourmission, we are committed to establishinglong-term strategic partnerships andcreating a better future through excellentproducts and services.

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