P and H, more than two letters
It is the negative decimal logarithm of hydrogen ion activity. In other words, the pH, i.e. a number ranging from 1 to 14. the pH represents the concentration of hydrogen ions in a solution. if it has a value below 7, the solution is acidic, while if it is above, the solution is alkaline.
The mere existence of two letters does not detract from the pH value. Before planting something, for example, it is important to know the acidity or alkalinity of the soil accurately. Even in the world of cosmetics, the pH is known. Who has never seen a shampoo, gel or cream that presents its pH neutrality in a majestic way? if this pH measurement is equivalent to that of human skin, if it is between 3.5 and 8, these products can be used daily, whereas if it is not within this range of values, it is not possible.
The internal pH of the human body is also important. He may be guilty of heartburn. Heartburn is most often the result of the influence of gastric secretions on the esophagus. The amount of acidity is measured by pH measurements. A small tube is inserted through the nostril to the entrance of the stomach. The probe measures acid leaks in the esophagus and sends them to a device that the patient needs to wear for 24 hours.
The test is not pleasant, but it is accurate. I tell you about the experience.
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