pH

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pH

potential of hydrogen; a measure of the acidity or alkalinity of a solution equal to the common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimetre of solution. Pure water has a pH of 7, acid solutions have a pH less than 7, and alkaline solutions a pH greater than 7

pH

[pē′āch]
(chemistry)
A term used to describe the hydrogen-ion activity of a system; it is equal to -log aH+; here aH+is the activity of the hydrogen ion; in dilute solution, activity is essentially equal to concentration and pH is defined as -log10[H+], where H+is hydrogen-ion concentration in moles per liter; a solution of pH 0 to 7 is acid, pH of 7 is neutral, pH over 7 to 14 is alkaline.

pH(S)

(analytical chemistry)

pH

A measure of the acidity or alkalinity of a solution; numerically equal to 7.0 for a neutral solution; the pH value increases with increasing alkalinity and decreases with increasing acidity. Also See pH value.

PH

1. On drawings, abbr. for phase.
2. Abbr. for phillips head.

phot

A unit of illumination equal to 1 lumen per square centimeter. Abbr. ph.

PH

(tool)
The tool for looking up people in Eudora on the Macintosh. Equivalent to Unix's finger service.

pH

(2)

ph

(networking)
The country code for the Philippines.
References in periodicals archive ?
When acid builds up, it robs every available resource to maintain pH balance.
The new all-natural supplement has been designed to alter the body's pH balance and oxygen content to a slightly alkaline, disease-resistant state.
OTCBB: NTRR) is studying a possible link between the body's pH balance and cancer and other diseases in order to formulate a powerful new health supplement.
British Dietetic Association's verdict: The theory of the alkaline diet is that eating certain foods can help maintain the body's ideal pH balance (acidity levels) to improve overall health.
The contract is the supply of consumables - diagnostics for the determination of the parameters of the ABR peripheral blood POCT mode after a period of 4 years, ie when the number of 152,000 examinations and present a free loan of a 5-pieces analyzers for pH balance ABRPOCT Clinic of the University Hospital.
M2 PHARMA-May 9, 2012-NTRR begins formulation of new pH balance supplement(C)2012 M2 COMMUNICATIONS
As well as removing chlorine, it is claimed it also raises the mineral content of water and ensures a neutral pH balance.
It inhibits growth of fungi that contribute to skin irritation, and reduces excess moisture, promoting a more natural pH balance for skin.
But Beyond Fresh Intimates, they point out, closely matches the natural pH balance of the skin.