Intercalation of amino alcohols into alfa-Zr(HPO4)2 . H2O

The formation of phases during the intercalation of amino alcohols (2-aminoethanol, 3-aminopropanol, 4-aminobutanol, 5-aminopentanol and 6-aminohexanol) into alfa-Zr(HPO4)2 . H2O was studied. The existence of three phases with general formula alfa-Zr(HPO4)2 .xNH2(CH2)nOH . zH2O (x=0.5, 1, 2; n=2-6; z=0.2-1.2) depends on the molar ratio of the starting compounds in the reaction mixture. The compounds alfa-Zr(HPO4)2 .2NH2(CH2)nOH . 1.2H2O (n=5 and 6) lose water and one molecule of amino alcohol upon heating to about 200 °C, as observed by thermal X-ray diffraction measurements.