Clear pH 7.00 Standard Buffer Solution, 1L Essential Supply used in step-up and step-down

used in step-up and step-down ratio demonstrations of Faraday's law

Center-of-gravity kit demonstrating how objects balance at their center of mass

Labeled relay demonstration circuit where the coil-powering circuit remains completely separate from the switched circuit

showing the hexagonal bonding within each layer and the weak bonding between layers

Clear pH 7.00 Standard Buffer Solution, 1L Essential Supply used in step-up and step-downPotassium phosphate clear pH 7. 00 buffer solution at 1L, holding pH stable at 25 degrees C for calibrating meters and electrodes at the neutral reference point in chemistry or biochemistry labs.