In rubber manufacturing, salt is used to make buna, neoprene, and white rubber. Brine and sulfuric acid are used to coagulate emulsified latex made from chlorinated butadiene. [10][9]
Salt was also added to protect the soil and provide firmness to the foundations on which the highways were built. The role of the salt is to minimize displacement effects in the subsurface due to changes in humidity and traffic loads. [1]
Sodium Chloride has an International Standard developed by ASTM International. The standard, called ASTM E534-13, is the Standard Test Method for the Chemical Analysis of Sodium Chloride. These listed methods provide procedures for the analysis of sodium chloride to determine its suitability for its intended use and application.
Sodium chloride is sometimes used as an inexpensive and safe desiccant due to its hygroscopic properties, making salting a historically effective method of preserving food; salt draws water out of bacteria through osmotic pressure, preventing them from multiplying, which is food spoilage main source of . Although more effective desiccants are available, few are safe for human ingestion.
Hard water contains calcium and magnesium ions that interfere with the action of soap and contribute to the formation of scale or film of alkaline mineral deposits on household and industrial equipment and pipes. Commercial and residential water softeners use ion exchange resins to remove ions that cause hardness. These resins are generated and regenerated using sodium chloride.
Naval authorities and shipyards monitor the salt concentration on the surface during construction. The maximum salt concentration on the surface depends on authority and application. The most commonly used is the IMO regulation, which sets the salt content at a maximum of 50 mg/m2 soluble salt (measured as sodium chloride).
Sodium chloride is used along with water as one of the main solutions for intravenous therapy. Nasal sprays usually contain a saline solution.
Solid sodium chloride has a melting point of 801 °C. The thermal conductivity of sodium chloride as a function of temperature is a maximum of 2.03 W/(cm K) at 8 K (-265.15 °C; -445.27 °F) and decreases to 314 K (41 °C; 106 °F). to 0.069 ).
