The Kilcher Homestead is a 600 acre Pioneer Homestead that has been protected for perpetuity via a ConservatIon Easement. The Kilcher Family has also preserved the Historic Cabin and site as a LIving Museum.
Yes, negative pH is possible, but not in water as a solvent. The range of pH in water is 0 to 14 (to be more precise, it is -1.7 to 15.7, but for simplicity's sake, we start with the usual values.) Thus, what pH indicates is the ability of the acid to form H3O+, which can then donate a proton.
Levels from 1.0 to 6.9 are considered as acidic pH, while 7.1 to 14.0 is alkaline pH. 7.0 is the neutral pH. The lower the pH number, the greater the acidity, and a higher pH number indicates greater alkalinity.