Rubber Antioxidant 4020 (6PPD)
Chemical Name: N-(1,3-DIMETHYLBUTYL)-N'-PHENYL-P-PHENYLENEDIAMINE
Other Name: 6PPD
Molecular Formula: C18H24N2
Structural formula:
Molecular Weight: 268.40
Melting Point of Pure Product: 52?
CAS NO. : 793-24-8
Technical Specification: GB/T21841-2008
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TITLE OF INDEX
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TECHNICAL SPECIFICATIONS
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Premium grade
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Qualified grade
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Appearance
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Purple brown to dark brown granules or flakes
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Assay, % min
(Area normalization method)
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96.0
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95.0
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Crystallization Point, ? min
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46.0
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45.0
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Loss on heating, % max
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0.5
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0.5
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Ash content , % max
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0.1
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0.2
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Properties: Pure products of 4020 are white solid substances, and will gradually oxidize to brown solid when exposed to the aire. Industrial products purpose 4020 are purple brown to black brown granules or flakes, and will slowly cake when the temperature exceeds 35-40 ?. Soluble in gasoline,benzene,acetone,ethyl acetate,dichloroethane,carbon tetrachloride,methylbenzene,ethylalcohol and other organic solvents, insoluble in water.