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| Antioxidant AO-68 |
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| Tris (2,4-di-tert-butylphenyl) phosphite |
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| 31570-04-4 |
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Antioxidant AO-68 is a solid phosphite antioxidant with outstanding hydrolytic stability.
Generally, it is used in combination with hindered phenolic antioxidants and hindered amine
stabilizers to contribute improved performance to a variety of polymers.
Antioxidant AO-68 can be used as a processing stabilizer in polymers to help control color
degradations and melt flow.
Antioxidant AO-68 is particularly useful in the stabilization of polyolefins, EVA, olefinic
copolymers when used in conjunction with a phenolic antioxidant.
Antioxidant AO-68 can also be used to stabilize polyesters, polycarbonates, polyamides,
polystyrene, and elastomers.
Use levels can range from 0.10 to 0.80% based on the polymer. |
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0.10 - 0.80%
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Molecular Weight: 646
% Phosphorus: 4.8
Appearance: White, free-flowing powder or granules
Specific gravity, 25'C: 0.98
Melting point: 182 - 186'C
Flash Point: >225'C
Decomposition Temperature: >350'C
Solubility: Soluble in most organics, insoluble in water and methanol |
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