Sodium Chloride [Chemical/Ingredient] A ubiquitous sodium salt that is commonly used to season food. It plays an important biological role in maintaining the osmotic tension of blood and tissues. The OSMOLAR CONCENTRATION this and other SALTS accounts for SALINITY which influences the types of organisms that live in an ENVIRONMENT. N0000007207 C0037494 Sodium chloride (NaCl) Sodium Chloride Sodium Chloride M0020094 D012965 Sodium Chloride 9863 C24766 Chlorides [Chemical/Ingredient] Sodium Compounds [Chemical/Ingredient]