Your Carbon Dioxide Safety Resource Center
Carbon Dioxide Safety Reminders
Carbon dioxide can create a hazardous atmosphere.
- Recognize and be aware of areas where carbon dioxide can accumulate.
- Monitor and ventilate for carbon dioxide as required by code.
- Never modify or tamper with carbon dioxide systems or equipment.
- Use required personal protective equipment (PPE) when working with carbon dioxide.
- Never enter an area of high carbon dioxide concentration without proper personal protective equipment (PPE).
- CGA G-6, Carbon Dioxide
- CGA G-6.9, Dry Ice
- CGA G-6.1, Standard for Insulated Liquid Carbon Dioxide Systems at Consumer Sites
- CGA G-6.5, Standard for Small Stationary Insulated Carbon Dioxide Supply Systems
- CGA G-6.7, Safe Handling of Liquid Carbon Dioxide Containers that Have Lost Pressure
Free CGA Safety Materials
Product Information: Carbon Dioxide
Carbon dioxide (CO2) is a compound of carbon and oxygen. A gas at normal atmospheric pressures and temperatures, carbon dioxide is colorless, odorless, slightly acidic, and about 1.5 times heavier than air. It can exist simultaneously at its triple point as a solid (dry ice), liquid, and gas at a temperature of –69.9 °F (–56.6 °C) and a pressure of 60.4 psig (416 kPa). At temperatures and pressures below the triple point, carbon dioxide can be either a solid or a gas, depending upon temperature conditions. At temperatures and pressures above the triple point and below 87.9 °F (31.1 °C), carbon dioxide liquid and gas can exist in equilibrium in a closed container. The solubility of carbon dioxide in water varies with temperature and pressure.
Carbon dioxide does not support life and can be dangerous even when adequate oxygen is available.