ULTRANOX™ 626 is a high performance solid phosphite antioxidant that improves color stability and reduces polymer degradation during compounding, fabrication, and end use in a variety of resins.
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ULTRANOX™ 626 is a solid organophosphite antioxidant that improves gas fading performance and color stability during compounding, fabrication, and end use. It delivers high performance at low loading rates, making this a cost effective addition to polymer formulas. ULTRANOX™ 626 synergizes with benzophenone and benzotriazole light stabilizers.
ULTRANOX™ 626 is so effective, it can replace another phosphite antioxidant in your formula and deliver equivalent performance at a significantly lower dosing rate. We've provided a handy calculator below to help you determine the dose of ULTRANOX™ 626 needed to replace your current phosphite antioxidant.
Appearance: White powder
Melting Point: 170-180 °C
Acid Number: 1.0 mg KOH/g
Free 2,4-di-t-butylphenol Content: 1.0% max
Phosphorus Content: 10.0-10.3%
Triisopropanolamine Content: 0.5-1.0%
Molecular Weight: 604 g/mol
Flash Point (Closed Cup): 168 °C
Bulk Density @ 20 °C: 0.43 g/ml
Primary Chemistry: Bis (2,4-di-t-butylphenyl) Pentraerythritol Disphosphite
Decomposition and degradation of polymers during compounding, fabrication, and final application of plastic products
Cost efficiency and high loading rate of organophosphite antioxidants
Gas fading and color stability issues in polyolefins and thermoplastics
Requiring FDA clearance A through H for use in polypropylene food packaging plastics
Polyolefins, styrenics, engineering thermoplastics
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