Optical Brightener ER-II

Optical Brightener ER-II is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter. Optical Brightener ER-II mainly used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.

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Product Description

Optical Brightener ER-II is a kind of plastics additives that can absorb UV light then emit visible blue light to reduce the yellowish and make the products whiter.
Optical Brightener ER-II mainly used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.

Product Name	Optical Brightener ER-II
Chemical Name	1,4'-bis(2,4'-cyano-phenlene)-benzene
CAS No.	13001-38-2
C.I. No.	199:1
Structural Formula
Molecular Formula	C₂₄H₁₆N₂
Molecular Weight	332
Porperty	Bluish color shade with high whitening brightening effect and excellent fastness to sublimation.
Technical Index	Appearance:slight yellow powder Melting Point:183~185°C Purity:≥99% Maximum UV Absorption Spectrum:369nm
Uses	Mainly be used as whitening agent for polyester fiber, as well the raw material of making paste form brightening agent in textile dyeing.
Package	10kg/25kg per fiber drum

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