pH
level of acidity (tested by checking the concentration of hydrogen ions in a solution by using indicators or electrodes) Ph (phenyl) n. group of chemical compounds derived from benzene (Chemistry) | ||||
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PH definition was found in categories: Computer & Internet(9) Government(1) Language, Idioms & Slang(1) Science & Technology(16) Society & Culture(3) Business & Finance(2) Medicine(5) Sports(1) Arts & Humanities(1) Encyclopedia(1)
PH Definition from Computer & Internet Dictionaries & Glossaries
| FOLDOC |
PH
<tool> The tool for looking up people in Eudora on the Macintosh. Equivalent to Unix's finger service.
(1995-03-31)
<tool> The tool for looking up people in Eudora on the Macintosh. Equivalent to Unix's finger service.
(1995-03-31)
| Integrated Circuit Terminology |
pH
the hydrogen ion concentration in a liquid exprseed as a negative logarithm so that a pH of 1 has twice the hydrogen ion concentartion of a solution with a pH of 2. A pH of 7 is nuetral, less than 7 is acidic and greater than 7 is alkalai.
the hydrogen ion concentration in a liquid exprseed as a negative logarithm so that a pH of 1 has twice the hydrogen ion concentartion of a solution with a pH of 2. A pH of 7 is nuetral, less than 7 is acidic and greater than 7 is alkalai.
| Computer Abbreviations v1.5 |
PH
PERL Header
Optimized Geoworks .GOH File
Microsoft Help Compiler Phrase Table
,PH3 PHP Script
PERL Header
Optimized Geoworks .GOH File
Microsoft Help Compiler Phrase Table
,PH3 PHP Script
| An Everquest Glossary |
ph
(abbr.) See placeholder.
(abbr.) See placeholder.
| Multi Internet Domains |
PH
PHilippines
**
PHilippines
**
| TCP/IP port numbers |
ph
481/tcp Ph service
481/tcp Ph service
| TCP/IP Ports Assignments |
481/tcp
{ph}
Ph service.
{ph}
Ph service.
481/udp
{ph}
Ph service.
| TCP/IP Ports Assignments (Intrusive) |
481/tcp
{ph}
Ph service.
{ph}
Ph service.
481/udp
{ph}
Ph service.
| Internet Domains |
PH
Philippines
Philippines
PH Definition from Government Dictionaries & Glossaries
| DOD Joint Acronyms and Abbreviations |
pH
potential of hydrogen
potential of hydrogen
PH Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
pH
Noun
1. (chemistry) p(otential of) H(ydrogen); the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is acidic and less than 7 is basic)
(synonym) pH scale
(hypernym) hydrogen ion concentration
(hyponym) acidity
(classification) chemistry, chemical science
Noun
1. (chemistry) p(otential of) H(ydrogen); the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is acidic and less than 7 is basic)
(synonym) pH scale
(hypernym) hydrogen ion concentration
(hyponym) acidity
(classification) chemistry, chemical science
PH Definition from Science & Technology Dictionaries & Glossaries
| EIA Energy Glossary |
pH
A measure of acidity or alkalinity. A pH of 7 represents neutrality. Acid substances have lower pH. Basic substances have higher pH.
A measure of acidity or alkalinity. A pH of 7 represents neutrality. Acid substances have lower pH. Basic substances have higher pH.
| WEATHER&METEOROLOGY |
pH
The potential of hydrogen ions - a measure of acidity or alkalinity. It is the log of the reciprocal of the hydrogen ion concentration. The pH scale runs from 0 to 14, 0 being very acidic and 14 very alkaline.
The potential of hydrogen ions - a measure of acidity or alkalinity. It is the log of the reciprocal of the hydrogen ion concentration. The pH scale runs from 0 to 14, 0 being very acidic and 14 very alkaline.
| Hill Associates Acronym List |
PH
Packet Handler (ISDN)
Packet Handler (ISDN)
| Glossary of Marine Biology |
pH.
Measure of he acidity or basicity of water (-log10 of the activity of
Measure of he acidity or basicity of water (-log10 of the activity of
| Agricultural Glossary/yigini2004 |
pH
The negative logarithm of the hydrogen ion concentration of a solution. It is the quantitative expression of the acidity and alkalinity of a solution and has a scale that ranges from about 0 to 14. pH 7 is neutral, <7 is acid and >7 is alkaline.
The negative logarithm of the hydrogen ion concentration of a solution. It is the quantitative expression of the acidity and alkalinity of a solution and has a scale that ranges from about 0 to 14. pH 7 is neutral, <7 is acid and >7 is alkaline.
| Abbreviation Airbus A340 |
PH
Phase
Phase
| Horticulture Solutions Series |
pH
pH is the measure of soil's acidity or alkalinity, measured on a scale of 1 to 14. Water is considered neutral at pH 7.
pH levels below 7 are classified as acidic, or "sour". Levels above 7 are basic, alkaline or "sweet".
Most plants prefer a slightly acidic soil pH of 6.0 to 6.5.
Modifying soil pH will not occur overnight. It may take one or two years for the soil pH level to be
raised or lowered.
See: pH -- Lower ; pH -- Raising ; pH Plant Requirements.
pH is the measure of soil's acidity or alkalinity, measured on a scale of 1 to 14. Water is considered neutral at pH 7.
pH levels below 7 are classified as acidic, or "sour". Levels above 7 are basic, alkaline or "sweet".
Most plants prefer a slightly acidic soil pH of 6.0 to 6.5.
Modifying soil pH will not occur overnight. It may take one or two years for the soil pH level to be
raised or lowered.
See: pH -- Lower ; pH -- Raising ; pH Plant Requirements.
| Electrochemistry Dictionary |
pH
"A measure of the acidity/alkalinity (basicity) of a solution. The pH scale extends from 0 to 14 (in aqueous solutions at room temperature). A pH value of 7 indicates a neutral (neither acidic nor basic) solution. A pH value of less than 7 indicates an acidic solution, the acidity increases with decreasing pH value. A pH value of more than 7 indicates a basic solution, the basicity or alkalinity increases with increasing pH value. "
"A measure of the acidity/alkalinity (basicity) of a solution. The pH scale extends from 0 to 14 (in aqueous solutions at room temperature). A pH value of 7 indicates a neutral (neither acidic nor basic) solution. A pH value of less than 7 indicates an acidic solution, the acidity increases with decreasing pH value. A pH value of more than 7 indicates a basic solution, the basicity or alkalinity increases with increasing pH value. "
| Glossary of water terms |
pH
a measure of the relative acidity or alkalinity of water. Water with a pH of 7 is neutral; lower pH levels indicate increasing acidity, while pH levels higher than 7 indicate increasingly basic solutions.
View a diagram about pH .
a measure of the relative acidity or alkalinity of water. Water with a pH of 7 is neutral; lower pH levels indicate increasing acidity, while pH levels higher than 7 indicate increasingly basic solutions.
View a diagram about pH .
| Technical English by wpv |
pH
The negative logarithm of the hydrogen-ion concentration of a solution; simply a measure of the relative acidity or alkalinity of a water solution. (pH 1 very acidic; pH 14, very basic; pH 7, neutral).
The negative logarithm of the hydrogen-ion concentration of a solution; simply a measure of the relative acidity or alkalinity of a water solution. (pH 1 very acidic; pH 14, very basic; pH 7, neutral).
| Physical Geography Terms and Meanings |
pH
Scale used to measure the alkalinity or acidity of a substance through the determination of the concentration of hydrogen ions in solution. A pH of 7.0 is neutral. Values below 7.0, to a minimum of 0.0, indicate increasing acidity. Values above 7.0, to a maximum of 14.0, indicate increasing alkalinity.
Scale used to measure the alkalinity or acidity of a substance through the determination of the concentration of hydrogen ions in solution. A pH of 7.0 is neutral. Values below 7.0, to a minimum of 0.0, indicate increasing acidity. Values above 7.0, to a maximum of 14.0, indicate increasing alkalinity.
| Airline Codes |
Polynesian Airlines
Polynesian Airilnes (Turkey)
IATA: PH
ICAO: PAO
Web:
Aliances:
FF:
Polynesian Airilnes (Turkey)
IATA: PH
ICAO: PAO
Web:
Aliances:
FF:
| General Chemistry Glossary |
pH
pH is a measure of hydrogen ion concentration in a solution, related to the molarity of H+ by pH = - log [H+]
pH is a measure of hydrogen ion concentration in a solution, related to the molarity of H+ by pH = - log [H+]
| Yigal's 3G abbreviations |
PH
Protocol Handler
Protocol Handler
| Rubber Glossary |
PH
Determines the concentration of either an acid or a base.
Determines the concentration of either an acid or a base.
| Country Data Codes |
PH
Philippines (Internet),
Philippines (ISO 3166)
Philippines (Internet),
Philippines (ISO 3166)
PH Definition from Society & Culture Dictionaries & Glossaries
| EPA Terms of Environment |
pH
An expression of the intensity of the basic or acid condition of a liquid; may range from 0 to 14, where 0 is the most acid and 7 is neutral. Natural waters usually have a pH between 6.5 and 8.5.
An expression of the intensity of the basic or acid condition of a liquid; may range from 0 to 14, where 0 is the most acid and 7 is neutral. Natural waters usually have a pH between 6.5 and 8.5.
| Environmental Engineering (English ver.) |
pH
A term used to describe hydrogen ion activity in an aqueous solution; a solution of pH 0 to 7 is acid; pH 7 is neutral; and pH 7 to 14 is alkaline.
A term used to describe hydrogen ion activity in an aqueous solution; a solution of pH 0 to 7 is acid; pH 7 is neutral; and pH 7 to 14 is alkaline.
pH (HYDROGEN ION CONCENTRATION)
(1) A convenient method of expressing the acidity or basicity of a solution in terms of the logarithm of the reciprocal (or negative logarithm) of the hydrogen ion concentration. The pH scale runs from 0 to 14; a pH value of 7.0 indicates a neutral solution. Values above 7.0 pH indicate basicity (basic solutions); those below 7.0 pH indicate acidity (acidic solutions). Natural waters usually have a pH between 6.5 and 8.5. Because the units are derived from common logarithms, a difference of one pH unit indicates a tenfold (101) difference in acidity; similarly, a difference of two units indicates a hundredfold (102) difference in acidity. The term originally derived from "potential of hydrogen," or hydrogen power. (2) A term indicating the hydrogen ion concentration of a solution, i.e., a measure of the solution's acidity. The term (from French, pouvoir hydrogène, or literally, "hydrogen power") is defined as the negative logarithm of the concentration of H+ ions (protons): pH = -log10 (H+), where (H+) is the concentration of H+ ions in moles per liter (see Mole). Because H+ ions associate with water molecules to form hydronium (H3O+) ions (see Acid and Base), pH also is often expressed in terms of the concentration of hydronium ions. In pure water at 22 C (72 F),H3O+ and hydroxyl (OH-) ions exist in equal quantities; the concentration of each is 0.107 moles/liter. Consequently, the pH of pure water is -log (0.107), which equals log 107, or 7. If an acid is added to water, however, an excess of H3O+ ions is formed; their concentration can range between 0.106 and 0.10 moles/liter, depending on the strength and amount of the acid. Therefore, acid solutions have a pH ranging from 6 (for a weak acid) to 1 (for a strong acid). Inversely, a basic solution has a low concentration of H3O+ ions and an excess of OH- ions, and the pH ranges from 8 (for a weak base) to 14 (for a strong base).
pH (pronounce as separate letters)
pH is an expression of the intensity of the basic or acid condition of a liquid. Mathematically, pH is the logarithm (base 10) of the reciprocal of the hydrogen ion concentration, [H+]. pH= Log (I/[H+]) The pH may range from 0 to 14, where 0 is most acid, 14 most basic, and 7 neutral. Natural waters usually have a pH between 6.5 and 8.5.
| cigar terms |
pH
a 0-14 scale that indicates degree of acidity; less than 7=acid, 7=neutral, greater than 7=base
a 0-14 scale that indicates degree of acidity; less than 7=acid, 7=neutral, greater than 7=base
PH Definition from Business & Finance Dictionaries & Glossaries
| Glossary of petroleum Industry |
PH (pH)
A symbol used in expressing both acidity and alkalinity on a scale whose values run from 0 to 14, with 7 representing neutrality; numbers less than 7, increasing acidity; greater than 7, increasing alkalinity.
A symbol used in expressing both acidity and alkalinity on a scale whose values run from 0 to 14, with 7 representing neutrality; numbers less than 7, increasing acidity; greater than 7, increasing alkalinity.
| Company Info: Ticker, Name, Description |
PH
PARKER HANNIFIN CORP
Exchange: NYSE
Manufactures motion control products, including fluid power systems, electromechanical controls and related components; And produces fluid purification, fluid flow, process instrumentation, air conditioning, refrigeration and electromagnetic shielding and thermal management products.
PARKER HANNIFIN CORP
Exchange: NYSE
Manufactures motion control products, including fluid power systems, electromechanical controls and related components; And produces fluid purification, fluid flow, process instrumentation, air conditioning, refrigeration and electromagnetic shielding and thermal management products.
GLT
PH GLATFELTER CO
Exchange: NYSE
Manufactures engineered papers used in the manufacture of variety of products, including tea bags, cigarette tipping and plug wrap papers, metalized beverage labels, decoratives laminates, food product casings, stencil papers, photo-glossy ink jet papers, greeting cards, medical dressings, highway signs and striping, billboard graphics,
PH Definition from Medicine Dictionaries & Glossaries
| ACRONYMS AND ABBREVIATIONS USED IN HSE |
PH
Public Health
Public Health
| Aids Glossary |
ph
a logarithmic scale used to describe the acidity or alkalinity of a solution; a measure of the hydrogen concentration of a solution. Water has a neutral pH of 7. A pH below 7 is acidic; a pH above 7 is alkaline (or basic).
a logarithmic scale used to describe the acidity or alkalinity of a solution; a measure of the hydrogen concentration of a solution. Water has a neutral pH of 7. A pH below 7 is acidic; a pH above 7 is alkaline (or basic).
| Hepatitis Central (TM) Liver Disease Medical Glossary |
PH
A numerical scale of 1-14 that measures the acidity-alkalinity of a substance. Normal arterial blood pH is approximately 7.4
A numerical scale of 1-14 that measures the acidity-alkalinity of a substance. Normal arterial blood pH is approximately 7.4
pH
Hydrogen ion concentration
| Labtests Abbreviations KÖRFEZLAB |
pH
measurement of acidity or alkalinity
measurement of acidity or alkalinity
| BUKHARI'S MAGIC LAB |
pH
pH(Blood) 7.35-7.45
pH(Blood) 7.35-7.45
PH Definition from Sports Dictionaries & Glossaries
| maritime&shipping&trade |
ph
per hatch
per hatch
PH Definition from Arts & Humanities Dictionaries & Glossaries
| Glossary of Stamp Collecting Terms |
pH
Numbers below 7.0 are acidic, above alkaline and pH 7.0 is neutral. However, pH 4 is ten times more acidic than pH 5 and 100 times more acidic than pH 6. An acidic album page may migrate to a stamp or cover mounted on it.
Numbers below 7.0 are acidic, above alkaline and pH 7.0 is neutral. However, pH 4 is ten times more acidic than pH 5 and 100 times more acidic than pH 6. An acidic album page may migrate to a stamp or cover mounted on it.
PH.
Photo, Photocopy
PH Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
PH
pH is a measure of the acidity or alkalinity of a solution. Aqueous solutions at 25 ℃ with a pH less than seven are considered acidic, while those with a pH greater than seven are considered basic (alkaline). The pH of 7.0 is defined as 'neutral' at 25 ℃ because at this pH the concentration of H3O+ equals the concentration of OH− in pure water. pH is formally dependent upon the activity of hydronium ions (H3O+), but for very dilute solutions, the molarity of H3O+ may be used as a substitute with little loss of accuracy. (H+ is often used as a synonym for H3O+.) Because pH is dependent on ionic activity, a property which cannot be measured easily or fully predicted theoretically, it is difficult to determine an accurate value for the pH of a solution. The pH reading of a solution is usually obtained by comparing unknown solutions to those of known pH, and there are several ways to do so.
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