Na2CrO4, or sodium chromate, is an inorganic compound composed of sodium, chromium, and oxygen. It appears as a yellow crystalline solid and is highly soluble in water. Sodium chromate is commonly used in various industrial applications, including as a pigment, in metal plating, and in the production of other chromium compounds. This compound is also important in analytical chemistry, where it serves as a reagent. However, it is classified as a hazardous material due to its toxicity and potential environmental impact, necessitating careful handling and disposal to prevent contamination and health risks.