For product formulators and R&D professionals in the chemical and plastics industry, achieving optimal whiteness and brightness in polymer products is a consistent goal. Optical Brightener OB, a high-performance fluorescent whitening agent, stands out as a key solution. Understanding its technical specifications and applications is crucial for any procurement manager or scientist aiming to enhance material appearance. As NINGBO INNO PHARMCHEM CO.,LTD., we are dedicated to supplying high-quality chemical ingredients that drive innovation.

Optical Brightener OB, with the CAS number 7128-64-5, is chemically known as 2,5'-Bis[2-(5-tert-butyl-2 benzoxazole)thiophene. Its molecular formula is C26H26N2O2S, and it presents as a light yellowish powder. What makes OB so effective is its ability to absorb UV light and re-emit it in the blue spectrum, counteracting yellow undertones in polymers and creating a brilliant, visually appealing white. This makes it an indispensable additive for many plastic applications, from consumer goods to industrial components.

The technical specifications of Optical Brightener OB highlight its suitability for demanding applications. It typically exhibits a purity of 99.80% and a melting point in the range of 201.1-202.2°C. Its excellent heat resistance and good light fastness ensure that the whitening effect remains stable even under challenging processing conditions or prolonged exposure to light. This level of performance is what B2B buyers look for when seeking a reliable supplier for polymer additives.

Common applications for Optical Brightener OB include enhancing the appearance of PVC, PS, ABS, PP, and PE plastics. It is also widely used in coatings, paints, inks, and even manufactured fibers. For product formulators, understanding the recommended dosage is key. While specific amounts vary by application and desired effect, typical concentrations range from 0.01% to 0.05% for plastics, and even lower for transparent applications. If you're looking to purchase Optical Brightener OB, consulting with a knowledgeable supplier can help optimize your formulation.

At NINGBO INNO PHARMCHEM CO.,LTD., we pride ourselves on being a premier manufacturer and supplier of specialty chemicals. Our commitment to quality ensures that you receive Optical Brightener OB that meets stringent standards, guaranteeing consistent performance in your products. For procurement managers and product developers seeking to elevate their materials with superior whiteness and brightness, exploring our Optical Brightener OB range is a logical next step. We aim to be your trusted source for high-performance chemical intermediates.