Automotive main ingredients

End uses. Its a little curious that the two major end uses for EG are so different. One is -a consumer product the other is a feedstock for more complicated chemistry. The reasons have to do with two separate properties of EG, one physical property, one chemical property. Because of EG s low freezing point, it is the main ingredient in automotive antifreeze. Because it is so chemically reactive, it is used as a monomer in making polyester polymers and PET, the plastic in the ubiquitous water and drink bottles. 

An antidote has been found for ethylene glycol poisonings, but it is too costly for most hospitals. Ethylene glycol is a main ingredient in automotive antifreeze and other products. Every year, at least 6,000 people fall victim to ethylene glycol poisoning, which can lead to permanent disability or death unless it is treated immediately. Traditional treatment is complicated and tricky, but the new drug fomepizole (Antizol Orphan Medical, Inc.) has been found to be a proven antidote (Leary, 1999). 

The amounts of main ingredients present in a water-borne automotive coating formulation are shown in Tab. 7-3 the functions of these ingredients are summarized in Tab. 7-4. 

Tab. 7-3 Main ingredients %) of for automotive coatings, RCA rheoiogy controi agent.

An essential ingredient in the innovation history in the area of chemicals is, however, doubtless the development of recipes for preparations and their specific adaptation to the requirements of fast-moving manufacturing processes, for example in the automotive, electronics, printing and paper industries. This occurs mainly on the basis of the existing inventory of primary materials. 

In the past few years the tudy of morphology changes undergone by supported Rh particles during oxidation / reduction thermal treatments has attracted considerable attention (refs 1-4). These phenomena are of particular importance in the deactivation of automotive exhaust catalysts for which rhodium is the main active Ingredient for the reduction of NO. 

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