BASF Chimassorb 81 is a premium benzophenone-based UV absorber offering exceptional broad-spectrum protection for polyolefin applications. With its unique octyloxy chain structure, this high-efficiency stabilizer delivers long-lasting photoprotection while maintaining material clarity and meeting stringent food contact regulations.
Broad-Spectrum Protection - Effective UV shielding across 270-340 nm range
Permanent Stabilization - Low-migration design ensures lasting performance
Processing Stability - Withstands high-temperature polymer processing
Performance Synergy - 40% durability boost with HALS stabilizers
Regulatory Compliance - Meets FDA and heavy metal restrictions
Agricultural Protection - Extended durability for greenhouse and mulch films
Food Packaging - Safe UV stabilization for containers and wrappings
Wire & Cable - Weather resistance for PVC and rubber insulation
Industrial Coatings - Color stability in protective coating systems
Consumer Products - UV protection for outdoor plastic articles
Chemical Name | 2-Hydroxy-4-n-octyloxybenzophenone |
CAS Number | 1843-05-6 |
Appearance | Pale yellow crystalline powder |
Molecular Weight | 326.43 g/mol |
Melting Point | 47-49°C |
Flash Point | >200°C (DIN 51758) |
Density (20°C) | 1.16 g/cm³ |
Vapor Pressure (20°C) | 4.6E-6 Pa |
Bulk Density | 360-440 g/l |
Solubility (20°C) | Acetone:43 g/100g / Water:<0.01 g/100g |
Recommended Dosage | Films:0.15-0.7% / Thick parts:0.1-0.5% |
Packaging | 20 kg/bag (moisture-proof foil) |
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