Application of lithium iodide trihydrate



Lithium iodide trihydrate is an important basic chemical reagent, which has a wide range of applications in the electrolyte of fuel cells, drug synthesis, catalytic chemistry, photographic industry and so on.

1) Application in battery electrolyte

There is a research invented a high-quality, inexpensive, reliable timer, the use of the instrument has a wide range of temperatures, pressure and shock resistance, can be used in airplanes, spaceships or other precision instruments. The key component of the indicator is the electrolyte of the battery. Studies have shown that an electrolyte composed of mercuric iodide and other components can impede the normal operation of the battery, due to the fact that the solution can freeze at slightly above 35°C, causing the instrument to malfunction, and that it is extremely unstable when the solution is below 10°C, generating system errors. However, the addition of lithium iodide to mercuric iodide not only increases the stability of the solution at low temperatures, but also does not produce any system errors. The composition of this solution is 50-60% lithium iodide trihydrate, 12-18% mercury iodide, and 2-38% distilled water. Experiments on different contents of lithium iodide were done in the range of -35 to 85°C. The results were as follows: (i) 7.5 g of lithium iodide trihydrate, 2.7 g of mercuric iodide, and 10 ml of distilled water did not form any crystals at temperatures higher than one 35°C, and they did not condense when the temperature was constant; (ii) 9 g of lithium iodide trihydrate, 2.7 g of mercuric iodide, and 10 ml of distilled water did not condense when the temperature was higher than one 57°C; (iii) 10 g Lithium iodide trihydrate, 2.7g mercuric iodide, 10ml distilled water, will not condense when higher than 79℃. The above experimental test results will not appear systematic error. In the case of the present use of the apparatus, the third solution is proportioned as its freezing point is just below the limit of instrument failure. Any material that provides lithium ions can be selected as the anode active material for lithium batteries. To prepare the solid state electrolyte, lithium nitride, lithium iodide monohydrate, lithium iodide dihydrate, lithium iodide trihydrate powders capable of conducting lithium ions, mixtures of species or mixtures of species of lithium iodide powders, or one of the lithium iodide powders described above and from alumina monooxide can be used. The electrolyte composed of the above components can increase the conductivity of lithium ions and the stability of the battery, extending its service life.

2) Application in drug synthesis

In the field of medical research, Parkinson's disease has been widely concerned, and dopamine-based drugs have been used in the treatment of Parkinson's disease. However, studies have shown that dopamine is unable to cross the blood-brain barrier and therefore cannot eradicate the symptoms of Parkinson's disease. Amino compounds of dopamine and other substitutable anilines, however, have this effect. Such compounds stimulate and sensitize the central nervous system's responses and, in particular, significantly reduce Parkinson's symptoms such as rigidity and involuntary tremors. This amide compound can be synthesized using lithium iodide trihydrate.