He noted the active properties of origanum, Chinese cinnamon, Singhalese cinnamon, Angelica and Algerian geranium. Since it was discovered that they were rich in terpenes and phenols, alcohols, and aldehydes, natural essences have been regarded as necessarily endowed with antiseptic properties, though in fact their bacterial action had been established in practice for thousands of years. Generally, natural essences have an acid ph value with a high resistance. The weaker the ph value, the more acidic the solution. The rh2 factor defines the charge in electrons of a given ph value and the power of oxide reduction, i.e. the balance between the phenomena of oxidation and reduction which will vary according to circumstances.
Resistance is the property of a solution to oppose transmission of heat or electricity.
The purer a solution, the less conductive it is to the transmission of electricity. However, a mixture of these essences has strong bacterial properties through nebulization in the atmosphere and has a resistance of 17,000. Thus the resistance of the mixture is much greater than that of its component essences. Its ph is acidic at 4.6. Alkalinity favors the rapid multiplication of microbes, whereas acidity opposes it.