A free online tool for preparing common lab buffer recipes by target pH, buffer strength, salt form, and final volume.
Type to search or click the field to choose from the buffer list.
Slider range is 0-1000 mL with common stop points marked. Type a value manually if you need a volume outside the slider range.
For calculated buffers, this assumes acid/base or single-buffer stocks have the same concentration. Adjust manually if your stocks differ.
Acid concentration, % w/w
Density, g/mL
Shown only when the selected recipe uses a liquid acid. Use your bottle or SDS values for diluted acid stocks.