Check washing process of washing a check is relatively simple and can be accomplished with basic solvents. The actual solvent is largely irrelevant — more importantly, the polarity of the solvent must match the polarity of the dye in the ink. For example, an ink that is mostly made of a polar dye would require a polar solvent (e.g. acetone or isopropanol). Both nail polish remover (acetone) and rubbing alcohol (isopropanol) are able to pull most common inks away from paper in minutes. Similarly, a non-polar dye would require a non-polar solvent (e.g. toluene or a similar hydrocarbon). Check washing Check washing
Antipyrine and benzocaine ear drops Antipyrine and benzocaine ear drops Antipyrine and benzocaine ear drops is a medication for the treatment of ear pain caused by otitis media. It combines antipyrine, a pain reliever, benzocaine, a numbing agent to treat ear pain, and hydroxyquinoline sulfate, an antiseptic. It is sold as Auralgan, Aurodex, Auroto, among other brands, and is abbreviated as A/B otic drops. A/B otic drops is indicated for ear pain caused by otitis media. It is used every 2–3 hours as needed for pain. A/B otic drops is also indicated for the removal of excessive or impacted cerumen. To clear cerumen, it is