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.
litmus paper is widely used to distinguish between acids and bases. So widespread is the use of litmus in testing whether a solution or gas is acidic or basic, that the concept of a litmus test has spread to include any simple but definitive test.