Light Stabilizer UV-2908

Light Stabilizer UV-2908

Chemical Name: Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate

English Name: Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate

Molecular Formula: C₃₁H₅₄O₃

Molecular Weight:  475

CAS Number: 67845-93-6

Molecular Structure:

Quality Standards:

Properties: This product is a white to light yellow powder with a melting point above 58°C and a specific gravity of 1.07 (25°C). It is easily soluble in toluene, chloroform, and hexane, and soluble in acetone.

Applications: This product is a hindered benzoate light stabilizer suitable for polyolefin plastics such as PP and PE. The typical dosage is 0.25-1%, depending on the specific substrate and performance requirements. It can be used alone or in combination with benzophenone UV stabilizers or phosphite antioxidants, demonstrating excellent synergistic effects.

This product features: 1) Low volatility, minimal coloration, good chemical stability, and resistance to acids and bases. 2) Excellent compatibility with other hindered amine light stabilizers, UV absorbers, and thioesters.

Storage: Store in a cool, dry place in a sealed container.

Packaging: 20 kg or 180 kg per drum, or as per customer requirements.

Shelf Life: 1 year