That's what skydrol smells like. Trust me, I once had a 737 so full of atomized skydrol that the smoke alarms in the lavs were going off. It all came from a pack in under 5 seconds. Maintenance overfilled the reservoir which is pressurized by bleed air. It was so full it was able to run down the bleed line and into the pack and the potable water since it is also pressurized by bleed air. We were told it was all clean, but in reality, not so much.