What Does BTB Stand For?

BTB stands for Bromothymol Blue

Bromothymol Blue (BTB) is a pH indicator commonly used in laboratory and educational settings. It changes color in response to pH variations, transitioning from yellow at acidic pH levels (approximately 6.0) to blue at alkaline levels (around 7.6 and above). BTB is frequently employed in experiments to visually demonstrate the acidity or alkalinity of solutions, making it an essential tool in chemistry and biological research.