Respectively using barium hydroxide and a basic anionexchanger as a catalyst, 2, 2-bis (hydroxymethyl) butyraldehyde is prepared from the Aldol condensation of butyraldehyde with formaldehyde.
在碱性催化剂的存在下，甲醛和丁醛经羟醛缩合反应合成2,2—二羟甲基丁醛。
2
The static, dynamic adsorption and desorption activities of direct fast black on an anionexchanger fiber 3-Ureido-2-Hydroxypropyl cellulose were studied.