Supercritical carbon dioxide, also known as scCO2, is a versatile and eco-friendly solvent that has become increasingly popular in various industries. This substance is used in the extraction of essential oils, as well as in the manufacture of pharmaceuticals, cosmetics, and even in the food industry. There are several other synonyms for supercritical carbon dioxide, including critical fluid carbon dioxide, high-pressure carbon dioxide, and supercritical fluid carbon dioxide. These terms all refer to the same substance, which is a state of carbon dioxide that is achieved through manipulation of temperature and pressure. Overall, the many applications of supercritical carbon dioxide make it a valuable resource in today's society.