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.
Types. Whether pH has an inhibitory or positive effect on bacterial growth depends on the if the bacteria is an acidophile, neutralphile or alkiphile, reports Griffith University. An acidophile grows in a pH range of 1 to 5.9, a neutralphile between 6.0 and 9.0 and a alkiphile between 9 and 11.