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chemicals raw materi(1)

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phthalic anhydride
Specification: Chemical formula: C8H4O3
Detail: Name Phthalic anhydride Item Superior degree First grade Apperance White flakes or crystalline powder Fused color(color number)% ¡Ü 20 50 Crystallization point ¡æ ¡Ý 130.5 130.3 Heat-stab...


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