Indicate Acidity, Neutrality or Alkalinity Solution. pH paper is a widely used indicator in chemistry to determine a solution's acidity, neutrality, or alkalinity. Acidic: pH values lower than 7 indicate an acidic solution. Acidic substances have excess hydrogen ions (H+) in the solution. Acidic substances include lemon juice, vinegar, and stomach acid. Neutral: A pH of 7 represents neutrality, where the concentration of hydrogen ions is equal to the attention of hydroxide ions (OH-) in the solution. Pure water is an example of a neutral substance. Alkaline (Basic): pH values higher than 7 indicate an alkaline or basic solution. Basic substances have a higher concentration of hydroxide ions (OH-) compared to hydrogen ions. Baking soda and household ammonia. Mezzotek NEER pH STRIP There is a strong correlation between the pH of the body's internal environment and pH paper helps you to maintain a good healthy body by testing many usual everyday substances, including moisturized soap, lemon juice, milk, liquid detergent, moisturized soil, saliva, urine, sweat...etc. Protective paper on the front of pH paper strips serves as a crucial element to maintain the integrity and effectiveness of the pH paper. This protective layer safeguards the pH-sensitive indicator on the strip from external factors that could potentially alter its accuracy. Suitable for all kinds of testing like Laboratory, Cosmetic Testing, Drinking Water, Saliva, Urine, etc. Quantity: Each pack contains 80 pH test strips, ensuring you have an ample supply for multiple tests and experiments.Accurate pH Measurement: Our pH paper provides precise and reliable pH readings for a wide range of substances, from 0 to 14, ensuring you get accurate results every time.Versatile Applications: Ideal for various applications, including aquariums, hydroponics, gardening, science experiments, brewing, cosmetics formulation, and food testing.