Fluorescent whitening agentCBS-X/ Optical Brightener CBS-X is a fluorescent whitening agent with excellentperformance. Here is a detailed introduction to it:
Basic information:
Chemical name: 4,4'-Bis(2-sodium sulfonate styryl)biphenyl.
CAS number: 27344-41-8.
Appearance: Yellow-green crystalline powder or granules.
Color light: Blue to red light blue.

Characteristics:
Good solubility: It has good solubility in water. At 25°C, the solubility is about 25g/L. At 95°C, the solubility is even higher and can reach 300g/L. This enables it to be evenly dispersed in various detergents and related products to ensure the uniformity of the whitening effect.
High chemical stability:
It has high stability to acids and alkalis and can maintain good performance in environments with different pH values, suitable for various detergent formulations.
It also has good tolerance to sodium hypochlorite and peroxides and can be used in detergents containing chlorine bleach or oxidants. It can still play a stable role in these environments.
Strong whitening performance: It has high whitening intensity and has good whitening effects on various fibers such as cellulose fiber, polyamide, and protein fiber. It can significantly improve the whiteness and gloss of items such as fabrics and paper.
Good color fastness: After repeated washing or use, it will not cause the fabric to turn yellow or green and can maintain the whiteness and brightness of items.
Relatively high safety: After years of research and experimental verification, under normal use conditions, it is non-irritating to human skin.
Application fields:
Detergent industry: It can be widely used in washing powder, laundry paste, liquid detergent, soap, fabric softener and finishing agent and other washing products. Detergents added with this fluorescent whitening agent can make white clothes whiter and colored clothes more vivid.
Textile printing and dyeing industry: It can be directly used for optical whitening of cotton, wool, linen, silk, chemical fiber and other fibers. When used in the textile printing and dyeing process, it can reduce the amount of traditional bleaching agents, reduce the damage to fabrics, and at the same time improve production efficiency and product quality.