BEPI was hydrolyzed in the excess sodium hydroxide into a tetrasodium salt, and then acidified into bisphenol A type diether tetraacid ( BPDETA, yield: 97.3%, melting point; 198.5~ 201.5 ℃) with sulphuric acid.

  • 再在过量氢氧化钠的作用下水解BEPI,使之生成四钠盐后,酸化处理得到双酚A型二醚四羧酸(BPDETA),收率为97.3%,熔点为198.5~201.5℃;

  • 互联网摘选 2025-01-20 17:29:54

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