Hi ARMS 2132 Researchers, Good news! REM has approved us to use the following chemicals again: * Nitric Acid (You are still prohibited from making Nital. All Nital use must be from a commercially made solution.) * Hydrofluoric Acid (Note: You will not be given the key to the HF cabinet without your HF buddy and proper training.) * Perchloric Acid * Base Piranha Solution At this time, the MSE Safety Committee plans to continue to keep all acids, oxidizers, and nital in the locked cabinets. You are still required to submit a hazard assessment (HA) and SDS/SOP in order access chemicals in these groups. Stay Safe, Jenni Fifer Safety & Mechanical Testing Lab Technician Materials Science & Engineering Purdue University Phone: 765-494-9718 Email: fiferj@purdue.edu