PTSD can be the result of one traumatic event, or as a result of ongoing traumatic events, and may occur after an unexpected or violent death or injury to a loved one. While many people experience traumatic events in their lifetime, not all of them will go on to develop post-traumatic stress disorder.
The 3 Main Formulations of ethylene glycol coolant exist are: 1) Silicate based also known as green coolant, 2) Organic Acid Technology based commonly called OAT's, which include extended life or Dex-cool, and 3) Hybrid coolants, which is a combination of organic acid technology mixed with a low dose of silicates.
Ethanol, C2H5OH, reacts with organic acids to form esters. Halogenation or Substitution of Ethanol with PCl5. Ethanol reacts with phosphorus pentachloride at room temperature to form hydrogen chloride, ethyl chloride (i.e. chloroethane) and phosphoryl chloride.One mole of ethanol loses one mole of water). When ethanol is mixed with concentrated sulphuric acid with the alcohol in excess and heated to 140 degC, diethyl ether distils over (two moles of ethanol loses one mole of water) .