Chemical Structure / July 18, 2018 / Scarlett Eaton
Pyridine is a colorless liquid. It boils at 115 degrees Celsius (239 F) and freezes at -42 degrees Celsius (-43.6 F). Its density is very close to that of water, at 0.982 gcm3 (water's density is 1). It is able to mix easily with water and most other organic solvents.
Ethylene glycol (also called 1,2-ethanediol, molecular formula HOCH2CH2OH) is a colourless, oily liquid possessing a sweet taste and mild odour. It is produced commercially from ethylene oxide, which is obtained from ethylene. Ethylene glycol is widely used as antifreeze in automobile cooling systems and in the manufacture of human-made fibres, low-freezing explosives, and brake fluid. Ethylene glycol and some of its derivatives are mildly toxic.
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