Abstract: Aqueous solubility,alkaline aqueous(5%Na₂SiO₃·9H₂O) solubility and acidolysis activity of some kinds of ethers were researched in the paper.Aqueous solubility,alkaline aqueous solubility and critical-insoluble ether equivalent of these kinds of ethers were determined or refered.And acidolysis activity of these kinds of ethers was measured also when trace amount of acid compounds exist. The results indicate that aqueous and alkaline aqueous critical-insoluble ether equivalent of ethers having no p-πconjugative effect are 116 and 102.Aqueous critical-insoluble ether equivalent of ethers having p-πconjugative effect is between 56 and 100.And alkaline aqueous critical-insoluble ether equivalent of this kind ether is between 56 and 72.The research results are very useful for molecular desigin of dissolution inhibitor/promotor for photo/thermal imaging systerm and graphic arts by alkali development.

Key words: ethers, aqueous solubility, alkaline aqueous solubility, acidolysis activity, dissolution inhibitor/promotor