婷婷五月开心亚洲综合在线,一本大道久久东京热无码,亚洲欧美日韩国产精品一区二区_精品人妻a综合网_日本在线观看中文字二区_精品免费在线观看


ER-III

Fluorescent whitening agent ER-IIIdry powder
Structural Formula:

Molecular Formula:C24H16N2
Molecular weight:332
Quality Index:

Item

Index

1.Appearance

Light yellow crystal

2.Fusion point

289℃-291℃

3. Purity

≥98%

Function and characteristic:
Bright yellow crystal, insoluble in water, soluble in DMF, high temperature resistance。

Scope of application:
Used for whitening and brightening of polyester fiber and spinning.
Package and storage:
25Kg carton lined with plastic bag, protect from light, transport by non-dangerous goods.