All you need to know about pH

The classical first year chemistry definition of “pH” refers back to Danish biochemist Søren Sørenson, who originated the term, alluding to the “potential of hydrogen ion.” Specifically, pH is the negative logarithm of the molar concentration of the hydrogen ion (H+) in the particular solution. This is usually expressed as a formula… pH = -log[H+]…

Formalin and formaldehyde

Most likely, your earliest exposure to “formaldehyde” involved some sort of biological specimen, preserved in a clear liquid. This liquid was probably identified as “formaldehyde.” And, if you were in elementary school or junior high, you didn’t give it a second thought. But, if you were to study organic chemistry, you would learn that formaldehyde…