The molecular formula of optical brightener VBL is c36h34n12o8s2na2. VBL is a typical representative product of bis (triazine amino) fluorescent brightener. It can be dissolved in 80 times of soft water and has anionic properties. The degree of acid and alkali resistance is pH = 6 ~ 11. The pH of dyeing bath is 8 ~ 9.
Optical brightener VBL
Molecular formula: c36h34n12o8s2na2
Molecular weight: 872.84 (according to the international relative atomic mass in 1991)