Search results
Results from the WOW.Com Content Network
Small amounts of ethylene glycol may be contained in holiday ornaments such as snow globes. [9] The most significant source of ethylene glycol is from aircraft de-icing and anti-icing operations, where it is released onto land and eventually to waterways near airports experiencing cold winter climates. [12]
The ethylene glycol either gains energy from the source (lake, ocean, water well) or dissipates heat to the sink, depending on whether the system is being used for heating or cooling. Pure ethylene glycol has a specific heat capacity about one half that of water. So, while providing freeze protection and an increased boiling point, ethylene ...
Two-, four-, and six-hour burn times are the most common sizes of methanol and ethanol chafing fuels available. The colour of the fuel being used can also vary among manufacturers. Both ethanol and methanol have low flash points, 11–17 °C, making them highly flammable ; diethylene glycol, with a flash point of 154 °C, is considered safer ...
Burning pieces of wood, showing various stages of pyrolysis followed by oxidative combustion. Pyrolysis is the process of thermal decomposition of materials at elevated temperatures, often in an inert atmosphere [ 1 ] without access to oxygen.
The term is considered by many safety professionals to be the same as the lower explosive level (LEL). At a concentration in air lower than the LFL, gas mixtures are "too lean" to burn. Methane gas has an LFL of 4.4%. [1] If the atmosphere has less than 4.4% methane, an explosion cannot occur even if a source of ignition is present.
The toxic effects of ingesting ethylene glycol occur because it is converted by the liver into 4 other chemicals that are much more toxic. The lethal dose of pure ethylene glycol is 1.4 ml/kg (3 US fluid ounces (90 ml) is lethal to a 140-pound (64 kg) person) but is much less lethal if treated within an hour. [9] (see Ethylene glycol poisoning).
Freezer burn increases the likelihood of oxidative reactions that deteriorates the quality of your food. It’s similar to what you experience with rancid oil or butter. But while it certainly ...
Temperature dependence of ethylene glycol vapor pressure. Uses formula ...