Powerful enough to handle acids (including hydrofluoric acid), bases, coolants and most other hazardous fluids. They resist reactions with most hazardous chemicals. They will also sorb petroleum-based fluids, non-aggressive chemicals and aqueous-based solutions, reducing the need to stock several different sorbent types. High capacity chemical sorbent pads come in a box of 50 pads and are sold in case quantities (4 boxes per case). Pads are 11" x 13". Sold 4 boxes to the case.