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A series of partly substituted cesium salts Cs x H 6−x P 2 W 18 O 62 of Wells–Dawson heteropolyacid has been prepared. The samples were catalytically active at temperatures as low as 40°C despite low specific surface area of the order of 1m 2 g −1 . Activity in gas phase synthesis of ethyl-tert-butyl ether related to mass of non-neutralized acid...
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