In number, type the number you are rounding up. In num_digits, type 0 to round the number up to the nearest whole number. Round a number down. ROUNDDOWN. In number, type the number you are rounding down. In num_digits, type 0 to round the number up to the nearest whole number. Round up to an even number. EVEN. In number, type the number you are rounding.
As with other types of organic compounds, alcohols are named by both formal and common systems. The most generally applicable system is that adopted at a meeting of the International Union of Pure and Applied Chemistry (IUPAC) in Paris in 1957.
Denatured alcohol is usually ethanol with methanol added. Ethanol is the alcohol that you drink, like in vodka. Methanol, aka wood alcohol, is poisonous, and is added to prevent people from drinking the stuff that contains the ethanol. Seems silly to use denatured in this case, but it is less expensive than pure ethanol most of the time. It probably is to speed drying time, and yes, it is probably drying for your hair.