I like to vacuum the album, to get as much as the paper dust off as possible, before putting the coins in.
Albums have a lot of paper dust under the top
cover of the page, when you take the slides in a and out this dust is dragged to the holes where the coins are.
This is very important for proof coins. Paper dust on a proof coin will attract moisture and over time a spot will develop.
I agree with others, do not touch the coins with bare hands. And if possible have all the coins for each section/slide to limit the number of times the slide go over each coin.
As to the acetone or water rinse I would not do that. Acetone bath is used to correct a specific problem not a general procedure.