It's soothingAfter water, the solution is alkaline, usually with ph values between 9. 0 and 9. 6, a characteristic derived from the hydrolytic reaction of boron sand in water。The alkalinity of the pentaquale solution is derived mainly from hydrolysis: it removes the ion of boron (b4o72-), which reacts with water to produce ion of boron acid (h3bo3) and ion of boron acid (b(oh)-4-), while releasing hydrooxygen ion (oh-), so that the