Preparation of Different Solid CsHSO4 Phases by Means of Sample Treatment
1986 ◽
Vol 41
(5)
◽
pp. 733-736
◽
Keyword(s):
Grinding of CsHSO4 can create a low-energy state which relaxes at 375 K by a first order phase transition with an endothermic enthalpy change of 1.14kJ/mol. The formed low-energy state can be transferred by one-dimensional pressure to a higher energy state which relaxes at 333 K by a first order phase transition with an endothermic enthalpy change of 0.55 kJ/mol. This striking - previously unknown - behaviour is probably not limited to CsHSO4 only, and it represents a new class of phase transitions. The involvement of the hydrogen bond present and the importance of water content are stressed. The temperatures and enthalpies of all three phase transitions of CsHSO4 are determined by DSC.
2013 ◽
Vol 117
(3)
◽
pp. 942-948
◽
2009 ◽
Vol 24
(08n09)
◽
pp. 1541-1544
2016 ◽
Vol 845
◽
pp. 166-169
◽
2018 ◽
Vol 27
(11)
◽
pp. 1830008
◽
1992 ◽
Vol 06
(08)
◽
pp. 1181-1192
◽
2020 ◽
Keyword(s):