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الشخص الذي يمكن الاتصال به Ms. wendy
qingzhensijie, Shijiazhuang, Hebei
Commodity name: Phthalic anhydride Chemical formula: C8H4O3 CAS No.: ******9 Name Phthalic anhydride Item Apperance White flakes or crystalline powder Fused color(color numbe Superior degree:*0 First grade: *0 Crystallization point ℃ ≥ Superior degree1:*0.5 First grade: **0.3 Heat-stable color %≤ Superior degree:*0 First grade:**0 Purity %≥ Superior degree:*9.5 First grade: *8 Free acid content % ≤ Superior degree:0.5 First grade: 0.5 Ash % ≤ Superior degree:0.*5 First grade: 0.*5
