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Secondary Antioxidant - Phosphorous Based

PowerNox™ 6260

Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite.
Synonym: 3,9-bis(2,4-bis(1,1-dimethylethyl)phenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro(5.5)undecane
Chemical Structure
Introduction / Features
PowerNox™ 6260 is a secondary high performance antioxidant for organic polymers. It has excellent melt flow and color protection during thermal processing of polymers.
Physical Properties
Chemical Name: Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite
CAS No.: 26741-53-7
EINECS No.: 247-952-5
Formula: C33H50O6P2
Molecular Weight: 604
Melting Point(°C): 160-175
Volatile Loss(%): Max.0.5
Appearance: White to Off-white Powder
Phosphorous Content(%): 10-10.3
Acid Value (mgKOH/g): Max.1.0
2,4-DTBP Content (%): Max.1.0
Min. Purity: 99%

Solubility (20°C) % w/w
Acetone: 8.5
Heptane: 4.5
Mineral Oil: 10
THF: 35
n-Hexane: 4.5
Methanol: 1.9
Toluene: 35.7
Water: <0.01

Applications
PowerNox™ 6260 can be used as excellent melt flow and color protection during thermal processing of polymers.
PowerNox™ 6260 can be used in combination with hindered phenol. PowerNox™ 6260 can be used with benzotriazoles and HALS for thermal and light stabilization in outdoor use.
Packings
PowerNox™ 6260 is supplied in 25Kg Aluminium Bag.
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