pH 7 Buffer Solution Calibration Kit

This 500mL bottle of pH 7.00 buffer solution is formulated with potassium phosphate and sodium hydroxide to produce a stable neutral pH at 25°C. The solution is dyed yellow for easy visual identification among buffer solutions. Safe handling and storage procedures, along with directions and temperature variation data, are printed on the bottle. Manufactured in the United States by Innovating Science. For laboratory use only.