In the realm of specialty chemicals, precise technical specifications are paramount for ensuring optimal performance and successful application. Optical Brightener CXT, a key fluorescent whitening agent, is defined by its specific ultraviolet (UV) absorption wavelength and its characteristic color. NINGBO INNO PHARMCHEM CO.,LTD. provides this vital information to guide its industrial users.

Optical Brightener CXT, also known as C.I. 71, is meticulously engineered to absorb light within a specific UV spectrum. Its maximum UV absorption wavelength is noted to be around 350 nm, with a tolerance of ±1 nm. This precise absorption range is critical for its function as a whitening agent. The energy absorbed from UV light is then efficiently re-emitted as visible light in the blue region of the spectrum. The intensity of this re-emission is quantified by E11, which for CXT is specified as ≥ 370. This high E11 value indicates a strong fluorescent emission, directly contributing to the exceptional whitening effect observed on treated materials.

The physical appearance of Optical Brightener CXT is described as a light-yellow to white powder. This coloration is typical for many optical brighteners before they interact with UV light. Once applied and activated by UV radiation, the compound converts the invisible UV light into visible blue light, thereby masking yellow undertones and producing a brilliant white appearance. Its anionic character further aids in its substantivity to various substrates, particularly cellulosic and polyamide fibers.

Understanding these technical parameters is crucial for formulators and manufacturers who incorporate Optical Brightener CXT into their products, whether for detergents, textiles, or other applications. The specific UV absorption band ensures compatibility with light sources that emit UV radiation, such as daylight. The fluorescence intensity (E11) directly correlates with the degree of whiteness achievable, allowing users to achieve desired visual effects. Furthermore, its performance characteristics, such as good resistance to chloride bleaching and a stable operating pH range (7-10), are supported by its robust chemical structure.

For businesses seeking to leverage these advanced properties, reliable suppliers like NINGBO INNO PHARMCHEM CO.,LTD. are indispensable. They ensure that the chemical auxiliaries provided meet stringent quality standards, including precise UV absorption and fluorescence metrics. This attention to detail in chemical specifications is what allows industries to achieve the desired product quality and consumer satisfaction, making Optical Brightener CXT a valuable asset in applications demanding superior whiteness.