Exaxol Alkalinity Standard, 500ppm (1.0ml=0.5mg as CaCO3)

Alkalinity Standard 500 ppm as CaCO3 by Exaxol, catalog numbers A0035-500 and A0035-1, is an alkalinity standard at 500 ppm as CaCO₃ (1.0 mL = 0.5 mg CaCO₃), used to check alkalinity titrations. Available in 500 mL and 1 L from MBP, a registered vendor to many research institutes across the USA.