International Numbering System (INS) for Food Additives: 529
Food additives Europe numbers: E529
Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound primarily used in the manufacture of cement, glass, and ceramics. It is also used in the production of paper, steel, sugar, and other industrial products. Calcium oxide is a white solid at room temperature, and is derived from limestone or other natural sources. It is highly reactive and forms strong bonds with other molecules, making it an essential ingredient in many industrial products. It can be used as an antacid to help reduce stomach acidity, as an electrolyte to help restore calcium balance, as an astringent to help reduce inflammation, and as a laxative to help stimulate bowel movements. Calcium oxide can also be used to treat osteoporosis and to help prevent bone loss. Additionally, it is sometimes used to treat digestive issues such as constipation, bloating, and indigestion.
Calcium oxide, also commonly known as quicklime or burnt lime, is a white, caustic, alkaline crystalline solid at room temperature. It is produced by heating calcium carbonate (limestone or seashells) to high temperatures (around 825°C) in a kiln.
Calcium oxide is not a medical substance and should not be ingested or used medically. In fact, it is a dangerous substance that can cause serious health problems if ingested or inhaled. It can cause severe burns to the skin, eyes, and respiratory tract.
Calcium oxide has many industrial uses, including:
- As a precursor to slaked lime (calcium hydroxide), which is used in many industrial processes, including the production of paper, cement, and mortar.
- As a desiccating agent to remove moisture from liquids and gases.
- In the steel industry to remove impurities from molten steel.
- In the environmental industry to treat wastewater and flue gas.
It is important to note that calcium oxide should only be handled by trained professionals who are aware of the safety hazards involved.