C.I.NO:113 | CAS NO:12768-92-2 | ||
Molecular Formula: C40H42N12O10S2Na2 | Solublility:soluble in water | ||
Appearance:reddish purple, yellow powder | Ionicity:anionic | ||
Fluorescent colors:red light | Moisture:≤0.5% | ||
Content of water-insoluble impurities:≤0.5% | |||
Fineness (residual content passed through 180μm-pore sieve ): ≤5% | |||
Fluorescent Brightener 4BK Red Light can be used for whitening of cotton, hemp and cellulose fiber fabrics, and brightening of light-colored fiber fabrics. | |||
Property | 1.The product is readily soluble in water, acid-resistant, alkali-resistant, and has much better whitening effect than VBL at pH 4.5-7. 2.Belonging to anionic type, it can be used in the one bath with anionic or nonionic surfactant. |