苯酚为什么是酸性但ph值却是9.0

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2775311-17-4 4-乙炔基-L-苯丙氨酸 HCl 279215-43-9 2798-20-1 龙胆酮酚 升麻醇-3-O-β-D-吡喃木糖苷 280129-83-1 6-羟基多巴胺盐酸盐 28166-41-8 叶绿素铜钠 5-羟基-1-四氢萘酮 L-(S)-霜霉灭 28342-31-6 28448-04-6 补骨脂查耳酮 284490-13-7 284661-68-3 284664-88-6 茶黄素-3'-没食子酸酯 2856-75-9 7-香叶草氧基-6-甲氧基香豆素 285978-14-5 氯化胆碱-D4 28598-08-5 286475-30-7 286852-20-8 287194-40-5 287194-41-6 三聚氰胺-三胺-15N3 287962-59-8