Description

1,4-Benzenedisulfonic acid, 2,2'-[1,2-ethenediylbis[( 3-sulfo-4,1-phenylene)imino[6-[bis(2-hydroxypropyl )amino]-1,3,5-triazine-4,2-diyl]imino]]bis-, potassium sodium salt is a high-purity, water-soluble fluorescent whitening agent (FWA) belonging to the triazinylaminostilbene class. This compound is valued for its exceptional brightening and whitening efficacy on cellulosic and synthetic fibers. It is a critical component for manufacturers in the textile, paper, and detergent industries seeking to enhance the visual appeal and perceived cleanliness of their products. Our supply ensures consistent quality and performance for global industrial applications.

Application

• Textile Whitening: Primary application for whitening and brightening cotton, viscose, and other cellulosic fibers during finishing processes.
• Detergent & Laundry Care: Incorporated into laundry detergents, fabric softeners, and soaps to impart a optical brightening effect on washed fabrics.
• Paper Manufacturing: Used in the production of high-brightness papers, including writing, printing, and specialty papers, to achieve superior whiteness.
• Synthetic Fiber Treatment: Effective for brightening polyamide (nylon) and other synthetic fibers to counteract yellowing.
• Plastics and Polymers: Can be used as a whitening agent in certain plastic formulations to improve aesthetic quality.

Basic Information

Product Name	1,4-Benzenedisulfonic acid, 2,2'-[1,2-ethenediylbis[( 3-sulfo-4,1-phenylene)imino[6-[bis(2-hydroxypropyl )amino]-1,3,5-triazine-4,2-diyl]imino]]bis-, potassium sodium salt
CAS No.	75790-89-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Fluorescent Brightener 220; FWA 220; Tinopal CBS-X; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxypropyl)amino]-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] potassium sodium salt; Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[bis(2-hydroxypropyl)amino]-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, potassium sodium salt; Optical Brightener 220; CBS-X
EINECS	Contact for details

Quality Control

Our production of this fluorescent whitening agent adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for strength and hue, to ensure it meets precise customer specifications and industry benchmarks. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and performance consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Yellowish powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Moisture (KF)	≤ 5.0%
Ash Content	≤ 20.0%
pH (1% Solution)	7.0 - 9.0
Whiteness Degree	Standard sample comparison

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.