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Ethylene glycol ( HOCH2CH2OH ). Used as an antifreeze, is produced by reacting ethylene oxide with water. A side reaction produces an undesirable dimer, DEG:

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Ethylene glycol ( HOCH2CH2OH ). Used as an antifreeze, is produced by reacting ethylene oxide with water. A side reaction produces an undesirable dimer, DEG: C2H4O+H2OHOCH2CH2OH HOCH2CH2OH+C2H4OHOCH2CH2OCH2CH2OH Discuss the design guidelines with respect to the use of excess reactant

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