Stafford, VA 22554 Quantico Corporate Center is conveniently located in Stafford, Virginia, just outside of the south gate to Quantico Marine Corps Base. Access to this eighty-five acre campus is available via US Route 1 or just seconds away from Interstate 95, exit 148.
Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5â8.3 at 25 Â°C (77 Â°F). Neutral litmus paper is purple. Litmus can also be prepared as an aqueous solution that functions similarly. Under acidic conditions, the solution is red, and under basic conditions, the solution is blue. Chemical reactions other than acid-base can also cause a color change to litmus paper.
Blue litmus paper remains blue when dipped in a base, but it turns red when an acid touches it. Red litmus paper stays red when dipped in an acid, but turns blue when a base touches it. Another way to more specifically determine an acid or base is through the use of pH paper. pH paper allows us to determine to what degree a substance is acidic or basic. When a substance is placed on pH paper a color appears.