Detail of "636-70-4"

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Thermal investigation of some ethylammonium salts in the solid state

Thermal investigation of some ethylammonium salts in the solid state. Part I. Singh, Ningombam Ibopishak; Mitra, Samiran (Dep. Chem.In this study， 636-70-4 and 7664-93-9 are also used., Manipur Univ., Imphal 795003, India). Thermochim. Acta, 197(2), 341-8 (English) 1992. CODEN: THACAS. ISSN: 0040-6031. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Section cross-reference(s): 22, 23, 67, 69 EtnNH4-nX (X = Cl, Br, HSO4; n = 1-3) were synthesized. The purity of the salts was checked by elemental analyses. None of the salts contained free acid or base. The anhyd. white cryst. salts are stable up to their m.ps. and undergo thermal decompn. leading to total volatilization. The activation energy (Ea*), enthalpy change (DH), and entropy change (DS) were calcd. for each step of the decompn. reaction of the salts by using std. methods. In some cases phase transitions were noticed. A linear correlation between Ea* and DS was noted for the decompn. reactions. The stability order with respect to Ea* followed the trend EtNH3X < Et3NHX < Et2NH2X. The probable mechanistic path of the decompn. is proposed. .