Alumina Acid, Standard Activity I is a good all-purpose adsorbent for laboratory as well as process use. It has an approximate pH of 4.5, a particle distribution of 50-200um, and a quantity of 1kg. The starting activity level of Alumina, Standard Activity I is about half as high as Alumina, Activity Super I and can be deactivated by the addition of polar media (water, alcohols, etc.) according to the deactivation scale. Standardized manufacturing processes provide a specific Brockmann dryness level for lot to lot reproducibility and precise deactivation possibilities. The Loss on Ignition (LOI) is 1.7 +/- 0.2% and the specific surface is ~150 m2/g. The adsorption behavior is extremely constant. Alumina Acid, Standard Activity I may be used for the purification of solvents. Applications include: Plant extracts, fatty acids, plant waxes, azobenzene