文頭・タイトル小文字、ｐH、ペーハー、水素イオン指数

pH is an example of an acidity function. Other acidity functions can be defined. (ph, Wikipedia)

pH is a measure of how acidic/basic water is.

We also report rate constants for the acid catalysed lactonisation, k(lact(D20)), of xyloisosaccharinic acid and the results of our investigations of the kinetics of hydrolysis of xyloisosaccharino-1,4-lactone at acidic and basic pHs. (PubMed)

The pH runs from 0 (strongly acidic) through 7 (neutral) to 14 (strongly alkaline). Salts are made when acids and bases react together. (BBC)

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(Title)
DUAL DIAPHRAGM ELECTROLYSIS CELL ASSEMBLY AND METHOD FOR GENERATING A CLEANING SOLUTION WITHOUT ANY SALT RESIDUES AND SIMULTANEOUSLY GENERATING A SANITIZING SOLUTION HAVING A PREDETERMINED LEVEL OF AVAILABLE FREE CHLORINE AND PH
二重隔膜電解槽組立体および残留塩類のない洗浄液を生成しそして同時に既定レベルの遊離型有効塩素とＰＨを持つ消毒液を生成する方法