Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Chimassorb 81 Benzophenone UV Absorber

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.

Features Of BASF Chimassorb 81 Benzophenone UV Absorber

  1. Broad-Spectrum Protection - Effective UV shielding across 270-340 nm range

  2. Permanent Stabilization - Low-migration design ensures lasting performance

  3. Processing Stability - Withstands high-temperature polymer processing

  4. Performance Synergy - 40% durability boost with HALS stabilizers

  5. Regulatory Compliance - Meets FDA and heavy metal restrictions

Typical Applications Of BASF Chimassorb 81 Benzophenone UV Absorber

  1. Agricultural Protection - Extended durability for greenhouse and mulch films

  2. Food Packaging - Safe UV stabilization for containers and wrappings

  3. Wire & Cable - Weather resistance for PVC and rubber insulation

  4. Industrial Coatings - Color stability in protective coating systems

  5. Consumer Products - UV protection for outdoor plastic articles

Specifications Of BASF Chimassorb 81 Benzophenone UV Absorber

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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