Exaxol Sulfuric Acid, 25% v/v (1+3)

Sulfuric Acid 25% v/v (1+3) by Exaxol, catalog numbers S667301-1, S667301-4, and S667301-20, is a sulfuric acid solution at 25% v/v, one volume of concentrated acid plus three volumes of water (1+3), roughly 4.5 M. Available in 1 L, 4 L, and 20 L from MBP, a registered vendor to many research institutes across the USA.