1) Flammable: Antifreeze, particularly those containing ethylene glycol or methanol, is highly flammable. It can easily catch fire if exposed to heat, sparks, or open flames. This makes it critical to handle antifreeze carefully in environments where there may be high temperatures or sources of ignition. Proper storage away from heat sources is necessary to minimize fire risks.  

2) Vapor Explosion Risk:  Antifreeze vapors can mix with air to form explosive combinations. Because these vapors are heavier than air, they tend to settle and spread along the ground, accumulating in low-lying or enclosed areas like basements, sewers, and tanks. If they come into contact with a heat source or spark, they can ignite, leading to a dangerous flashback explosion. To reduce this risk, it’s crucial to handle antifreeze in well-ventilated spaces and avoid letting vapors build up in confined areas.  

3) Runoff Hazards: If antifreeze or its runoff gets into sewers, drains, or confined spaces, it can create a serious fire or explosion risk. These places can collect flammable vapors, which could ignite if they come into contact with a spark or heat source. To prevent this, it’s important to dispose of antifreeze properly and avoid letting it enter drainage systems or water supplies. 

 4) Container Explosion: Antifreeze containers, especially those made of metal or other rigid materials, can explode if exposed to high heat. As the antifreeze heats up, the pressure inside the container builds. This may lead to an explosion if the container isn’t properly vented. This can happen during transportation or storage in areas with high temperatures. Therefore, antifreeze should be stored in cool environments, and containers should be handled with care to avoid any pressure buildup.  

5) Toxicity and Irritation: Some antifreeze types, particularly those with ethylene glycol or methanol, can produce toxic gases like hydrogen sulfide. Inhaling these gases can lead to symptoms such as dizziness, headaches, and even asphyxiation in severe cases. Additionally, direct contact with antifreeze can irritate or burn the skin and eyes.  


Read More: https://cloudsds.com/chemical-hazard-and-safety/is-antifreeze-flammable-know-in-detail-cloudsds/