However, unlike ethanol, methanol is highly toxic and unfit for consumption. At room temperature, it is a polar liquid, and is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol. It is also used for producing biodiesel via transesterification reaction.f as little as 10 mL of pure methanol is ingested, for example, it can break down into formic acid, which can cause permanent blindness by destruction of the optic nerve, and 30 mL is potentially fatal, although the median lethal dose is typically 100 mL (3.4 fl oz) (i.e. 1â2 mL/kg body weight of pure methanol).
Present Value of a Perpetuity (t â â and n = mt â â). For a perpetuity, perpetual annuity, the number of periods t goes to infinity therefore n goes to infinity. The. term in equation (11) goes to 0 and the 1/(1 + i) n in the second term also goes to 0 leaving just formula (5).
Net present value (NPV) is a popular measure of profitability used in corporate budgeting to assess a given project's potential return on investment (ROI). Because of the time value of the dollar, NPV takes into account the compounding of the discount rate over the duration of the project.