Fine Optical Brightener Light Yellow Powder - 99% Purity with 199-201°C Melting Point for Plastics

Price Negotiable

Price: Negotiable

MOQ: 1 ton

Delivery Time: Negotiable

Brand: RUNYE

Product Description

Fine Optical Brightener - Light Yellow Powder

High-performance fluorescent brightener with exceptional heat resistance up to 199-201°C melting point, designed for plastics and synthetic fibers.

Product Specifications

Product Name	Optical Brightener
Other Name	Fluorescent Brightener
CAS No.	7128-64-5
Einecs No.	230-426-4
Appearance	Light Yellow Powder
Specification	99%
Molecular Formula	C26H26N2O2S
Molecular Weight	430.56
Melting Point	199-201 °C (lit.)
Boiling Point	531.2±45.0 °C (Predicted)
Application	Auxiliary Agents

Key Features

High whitening strength with strong fluorescence performance
Excellent high-temperature resistance up to 199-201°C
Wide application scope: polyester, nylon fiber and various plastics
Superior heat resistance, light resistance and chlorine bleaching resistance

Applications

Fluorescent Brightener is specially formulated for high-temperature molding processes in plastics and plastic products manufacturing. Its exceptional properties make it ideal for whitening polyester fibers, polyester-cotton blend fabrics, and polyester raw liquid applications.

Packaging & Storage

Packaging: 25kgs fibre drum

Quantity: Approximately 5.25 metric tons per 20-foot container without pallet

Storage: Store in a cool, dry place to maintain product integrity