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https://www.selleckchem.com/pr....oducts/mptp-hydrochl
A highly c-plane oriented h-WO3 membrane was successfully obtained under the optimized condition, which exhibited a maximum separation factor of 40.0 and a water permeance of 1.53 × 10-7 mol·m-2·s-1·Pa-1 in a 9010 wt % CH3COOH/water mixture. The water permeance approximately doubled compared to the previous report, possibly owing to the significantly higher degree of c-plane orientation. Furthermore, it was found that its separation ability can be maintained while stored in 9010 wt % CH3COOH/water mixture with pH less then 0