The pH value of NaCl, which is sodium chloride, is 7, making NaCl a neutral substance. While substances with pH values of 7 are considered neutral, those with pH values between 0 and 7 are considered acidic, and those with pH values greater than 7 are considered basic.
NaCl is also known as table salt. It has several applications in industry. It can reduce bacteria in body secretions and prevent sodium loss from excessive sweat or dehydration. In hospital and medical settings, NaCl is used for cleaning intravenous catheters. It prevents blockage in the tubing and removes residual medicine from the apparatus.