No abstract

Some ammoniates of lithium or sodium salts do not dissolve Li or Na and possess a low ammonia pressure at room temperature. This family of ammoniates can be used as liquid or solid electrolytes for lithium or sodium batteries without any diaphragm between the anodic material (Li or Na) and the cathodic material. In this work two ammoniates LiClO4·4NH3 and normalNaI·3.3NH3 both possessing pfalse(NH3false)<760 normalHg mm at +20°C and prepared at room temperature were used as electrolytes. High performance batteries have been tested. For instance with LiClO4·4NH3 and the couple “normalLi/MnO2” at +20°C: normalopen‐normalcircuit voltage=3V and normalshort‐normalcircuit current density=1Acm−2 (at −32°C this last value becomes 0.05A cm−2) for an normalelectrode distance=0.1 normalcm .

No abstract

The pK vaLues of sone weak acids were measured using the hydrogen electrode in liquid ammonia containing 0 . q potassium iodide supporting electrolyte at -6OoC. results showed that acetone (pK = 22.5), aniline (pK = 28.8), and 4-chloroaniline (pK = 7 7 . 4 ) were weaker acids than water (pK = 18.9), while thiophenol, diphenyl thiourea, thiocarbohydrazide (pK<2), phenol (pK = 3.5), phenylthiourea (pK = 3 . 8 ) , thioacetamide (pK = 4.6), thiosemicarbazide (pKl= 4.7; p 5 = 8.5), thiosinamine (pK = 6.6), diphenylurea (pK = 7.0), diphenylsemicarbazide (pK = 7.6), diphenylguanidine (pK = 10.7), and diphenylcarbazone ( 9 . 5 < pK<11) were stronger than water.The