Weihai cloud clearing Chemical Development Institute   

11, Weihai cloud Qing Xu Cong fluorescent whitening agent OB-4 chemical name: (1 - O - cyano styryl, 4 - cyano styryl) Ben Yingwen Name: 1.4-Bis-p-cyanostyryl-benzene quality index: appearance bright yellow crystalline content is more than or equal to 99% melting point 289-291 DEG C water soluble matter less than or equal to 0.1% use: used in polyester and acetate fiber, nylon, polyester / cotton blended fabric whiteness, the goods and ER, EB composite has better effect to use. Packing: 25 kg drum or drum, lined with plastic bag.