Chicstab 626

Product Description

CAS NO.  26741-53-7

Chicstab 626 is a new generation of high-efficiency, high-temperature phosphite ester antioxidant. It offers excellent processing stability and color protection for resins exposed to high and ultra-high temperature conditions (above 300℃), along with strong light stability. It represents a significant advancement in high-temperature antioxidant technology, particularly beneficial for plastics requiring repeated high-temperature processing and extrusion, enhancing polymer color retention across diverse applications.

Compared to conventional phosphite antioxidants, this product features a higher phosphorus content (the active antioxidant functional group), ensuring superior efficiency. It serves as a light-resistant stabilizer and synergist for ketones and benzotriazoles. Its addition effectively shields polymers during high-temperature processing, ensuring robust stability through multiple processing cycles.

This high-efficiency antioxidant outperforms other phosphite esters, delivering enhanced processing stability with half the typical dosage of ordinary phosphite ester antioxidants. It is commonly used in conjunction with primary phenolic antioxidants such as Chicstab 1010 to optimize performance.

Physical properties 

Features/benefits

Easily soluble in benzene, chloroform, cyclohexane, and other organic solvents; insoluble in water and cold alcohol, with slight solubility in phenols. This product exhibits low toxicity, excellent thermal stability, and resistance to water extraction.

Application

Widely applied in PP, PE, PS, PA, PC, ABS, and other polymer materials, it is typically utilized at concentrations ranging from 0.1% to 0.3%.

Package

It is packaged in paper-plastic composite bags or cartons lined with plastic bags, each containing a net weight of 25 kg.

Shelf life

6  months from the date of production under unopened original packaging.

Storage and Transportation

This product is prone to hydrolysis. Store in a moisture-proof, light-resistant, and cool place. keeping the container tightly sealed,   after opening, it is recommended to keep it airtight and use it up as soon as possible. Pay attention to prevent leakage during transportation, follow good industrial practice. Handle with care to avoid environmental pollution.