What are the fire and explosion dangers associated with carbon dioxide gas?
Carbon dioxide (CO2) does not burn and does not support combustion. However, cylinders or containers may rupture or explode in the heat of a fire. CO2 can displace air to the point where there is not enough oxygen to breath. It is slightly heavier than air and may accumulate in low areas posing a confined space hazard. Is carbon dioxide gas stable when exposed to air, moisture, or heat? CO2 is normally stable. In the presence of ultraviolet light or electrical discharges, CO2 decomposes to carbon monoxide and oxygen. Are there any conditions to avoid when using carbon dioxide gas? Temperatures higher than 52 deg C (approximately 125 deg F). Does carbon dioxide gas have an odour threshold (at what level can I smell it)? CO2 is odourless. Is the odour of carbon dioxide gas reliable as a warning property? NONE – colourless and odourless. How can I work with carbon dioxide gas safely? This material is a COMPRESSED GAS. Before handling, it is important that engineering controls are operatin