Iodized salt contains iodine to prevent deficiency affecting two billion people worldwide. Salt is effective for distributing iodine due to its stability and predictable consumption. Four inorganic compounds are used as iodine sources: potassium, sodium iodate, and sodium iodide
K4[Fe(CN)6]·3H2O forms lemon-yellow monoclinic crystals. First prepared by Macquer in 1752 from Prussian blue and potassium hydroxide. Historically manufactured from nitrogenous organic material and iron filings
Anticaking agents prevent lumps in powdered materials like salt and confectioneries. Crystalline solids cake through liquid bridge formation. Amorphous materials cake through glass transitions. Some agents absorb moisture or coat particles
Salt contains 40% sodium and 60% chloride. Human body needs about 500 mg sodium daily for vital functions. Most Americans consume 3400 mg sodium daily, exceeding recommended limits
Table salt contains 97-99% sodium chloride (NaCl). Pure NaCl is white, but may have purple or blue tinge from impurities. Sea salt is dull brown or gray, while rock salt varies in color
Sodium is not the same as salt, but sodium is a component of table salt. Table salt contains 40% sodium and 60% chloride. Sodium is an essential mineral that must be obtained from food