Ningbo Inno Pharmchem Co., Ltd. provides comprehensive product information to empower manufacturers in utilizing our chemical solutions effectively. Optical Brightener KSN (C.I. 368), a leading fluorescent whitening agent, comes with a specific set of technical parameters that are crucial for optimal application. Understanding these specifications ensures the best performance and product quality.

Key technical specifications for Optical Brightener KSN include its appearance, which is typically a yellowish-green powder. This physical form facilitates easy handling and incorporation into various manufacturing processes. The purity level is generally high, often exceeding 98% or 99%, ensuring minimal impurities that could affect the whitening effect or interact negatively with other formulation components. The melting point is also a critical parameter, usually recorded in the range of 269-271°C, indicating its thermal stability during processing.

The chemical formula, C29H20N2O2, and CAS Number 5242-49-9, define the unique molecular structure responsible for its optical brightening properties. Its molecular weight is approximately 428.48 g/mol. For practical use, the fineness is often specified, with values such as passing through a 300 or 325 mesh sieve, ensuring good dispersibility. Volatile content and ash content are typically kept very low, usually less than 0.5%, further highlighting the product's purity and quality.

When it comes to application, the recommended dosage for Optical Brightener KSN is a critical factor. For plastics, a typical dosage ranges from 0.01% to 0.05% by weight of the material. For transparent plastics, even lower concentrations, such as 0.0005-0.002%, might suffice to achieve the desired effect. For polyester fibers, recommendations often fall between 0.01% to 0.02% of the resin weight. It is always advisable to conduct trials to determine the optimal dosage for specific applications and polymer types.

Packaging and storage are also important considerations for maintaining product integrity. KSN is commonly supplied in 25kg fiber drums or bags, often lined with protective plastic bags to prevent moisture ingress. Storage should be in a cool, dry, and well-ventilated area, away from direct sunlight. While generally considered stable, following storage guidelines ensures a shelf life of up to two years, preserving its efficacy.

Safe handling practices are paramount when working with any chemical. While Optical Brightener KSN is not classified as hazardous, it is recommended to wear appropriate personal protective equipment, such as gloves and safety goggles, to avoid direct contact with skin and eyes. Good industrial hygiene practices should always be followed. In case of contact, affected areas should be washed thoroughly with soap and water.

Ningbo Inno Pharmchem Co., Ltd. provides detailed technical data sheets (TDS) and Material Safety Data Sheets (MSDS) for Optical Brightener KSN. These documents contain more in-depth information on properties, handling, and safety, and are available upon request to ensure our clients can use this powerful whitening agent with confidence and achieve the best possible results in their manufacturing processes.