Sodium Chloride, also known as Sodium Monochloride, Halite, Common salt, and Rock salt, appears as colorless or white crystals or crystalline powder having solubility in Water and Ethanol at ambient conditions. When dissolved in Water, it dissociates into replaceable Sodium and Chloride ions. It is obtained from underground room and pillar mining or solution mining. The solution mining involves pumping water into a rock salt deposit and then bringing it back to the surface followed by evaporation. A USP Grade chemical is the one that conforms to the criteria of the United States Pharmacopeia (USP). A substance that has received the USP Grade certification can be used in food, drug, or medical applications. In the United States of America (USA), Lab Alley is selling its high-quality Sodium Chloride, USP Grade, online at laballey.com.