Properties
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grayish black solid, density 0.986-1.00; m.p. 40-45℃, soluble in benzene, acetone, ethyl acetate, dichloroethane and toluene; insoluble in water; will turn dark when exposed to the air; toxic; can protect natural rubbers and synthetic rubbers from aging
Quality Stnadard: (HG/T 3644-1999)
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Item
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Qualifier
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Appearance
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grayish brown to dark brown granules
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m.p.
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45.0℃ MIN
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Heating Loss
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0.50% MAX
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Ash
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0.15% MAX
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content(GC)
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96.0% MIN
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freezing point
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45.5℃ MIN
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