The article discusses carbon dioxide, covering its physical and chemical properties, occurrence in nature, environmental effects, production methods, purification, liquefaction, and uses in various industries. It also touches on economic aspects and safety precautions related to handling carbon dioxide. Key findings include different processes for producing carbon dioxide, its uses as a refrigerant, in promoting plant growth, and as a heat transfer medium in nuclear power stations. The article provides a comprehensive overview of carbon dioxide and its significance in various fields.