Optical Brightener PC-4 Sulfonic Acid for Papermaking | C.I. Fluorescent Brightener 220 | CAS No. 16470-24-9

Short Description:

Optical Brightener PC‑4 Sulfonic Acid (C.I. Fluorescent Brightener 220, CAS No. 16470‑24‑9) is an amber liquid fluorescent whitening agent designed for papermaking. It is suitable for paper coating, surface sizing and pulp use, helping improve paper whiteness, brightness and overall visual appearance. Its liquid form allows convenient handling and incorporation into compatible papermaking processes.

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Key Features

Designed for the Paper Industry

Optical Brightener PC-4 Sulfonic Acid is designed for papermaking applications, including coating, surface sizing and pulp processes.

Improved Paper Whiteness & Brightness

PC-4 helps enhance the perceived whiteness and brightness of paper products and improves their overall visual appearance.

Suitable for Paper Coating

PC-4 can be used in compatible paper coating processes where enhanced optical brightness and whiteness are required.

Suitable for Surface Sizing

The product is suitable for compatible surface sizing applications to improve the optical appearance of finished paper.

Suitable for Paper Pulp

PC-4 can also be used in compatible paper pulp applications according to specific production and formulation requirements.

Liquid Product Form

Supplied as an amber liquid, PC-4 provides convenient handling and incorporation into compatible papermaking systems.

Product Information

Item	Information
Product Name	Optical Brightener PC-4 Sulfonic Acid
C.I. Name	C.I. Fluorescent Brightener 220
CAS No.	16470-24-9
Molecular Weight	1165.04
Appearance	Amber liquid
Main Applications	Paper coating, surface sizing and paper pulp

Typical Applications

Paper Coating

Optical Brightener PC-4 Sulfonic Acid can be used in compatible paper coating formulations to enhance paper whiteness and brightness and improve the visual appearance of coated paper.