Chemical Properties of E85. Ethanol is the major component of E85. Ethanol, C2H6O, is ethane with a hydrogen molecule substituted by a hydroxil radical. It is colorless, flammable and a moderately toxic chemical compound that has a unique, perfume-like smell.thanol, before it was used as a main alcoholic drink ingredient, is usually produced through fermentation -- the carbohydrates' presence by specific yeast species when oxygen is not available. Ethanol is deemed as a depressant and a psychoactive drug component of liquors.
Biochemical oxygen demand (BOD) is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period. The term also refers to a chemical procedure for determining this amount.
Biological Oxygen Demand (BOD) is a measure of the oxygen used by microorganisms to decompose this waste. If there is a large quantity of organic waste in the water supply, there will also be a lot of bacteria present working to decompose this waste. In this case, the demand for oxygen will be high (due to all the bacteria) so the BOD level will be high. As the waste is consumed or dispersed through the water, BOD levels will begin to decline. Nitrates and phosphates in a body of water can contribute to high BOD levels.