Description

Fluorescent Brightener 85 is a high-performance stilbene-based optical brightening agent (OBA) designed to impart a brilliant white appearance to various substrates. Its core value lies in its exceptional whitening and brightening efficacy, which enhances the perceived quality, cleanliness, and visual appeal of finished products. This agent is essential for manufacturers in the plastics, synthetic fibers, detergents, and paper industries seeking to achieve superior whiteness and counteract yellowing.

Application

• Plastics and Polymers: Widely used in the whitening of PVC, polyolefins (PP, PE), ABS, and engineering plastics for applications in household goods, packaging, and automotive parts.
• Synthetic Fibers: Effective brightener for polyester, nylon, and acetate fibers during melt spinning or in spin finishes to produce brilliantly white textiles.
• Detergent and Soap Formulations: Incorporated into laundry detergents, fabric softeners, and soaps to provide a whitening effect on fabrics during washing.
• Paper and Pulp Industry: Used in coating formulations and pulp to achieve high brightness grades in printing papers, tissues, and board.
• Coatings and Inks: Added to paints, lacquers, and printing inks to enhance whiteness and opacity.
• Photographic Industry: Employed in certain photographic papers and films for optical enhancement.

Basic Information

Product Name	Fluorescent Brightener 85
CAS No.	12224-06-5
Molecular Formula	C₄₀H₃₈N₁₂O₈S₂
Molecular Weight	878.96 g/mol
Synonyms	2,2'-(1,2-Ethenediyl)bis[5-[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid; Fluorescent Brightener ER-I; Tinopal ER; Blankophor ER; Leucophor PAM; Whitex ER; OB-85; FBA 85
EINECS	Contact for details

Quality Control

Our Fluorescent Brightener 85 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for strength, and checks for solubility and hue. We provide Certificates of Analysis (COA) with each shipment to ensure traceability and compliance with your specifications and industry standards.

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). Keep away from incompatible materials and sources of heat. Under these conditions, the product remains stable for an extended period.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Absorbance (in solution)	Within specified range
Solubility	Freely soluble in common organic solvents

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