pHDefinition (http://en.wikipedia.org/wiki/PH
http://goldbook.iupac.org/P04524.html) In chemistry, pH is a measure of the activity of the (solvated) hydrogen ion. p[H], which measures the hydrogen ion concentration is closely related to, and is often written as, pH. Pure water has a pH very close to 7 at 25°C. Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline. (Wikipedia) Preferred Units: N/A Scope Note:
N/A This term is used for the following terms:
Hydrogen ion concentration
Approved Date
06-Nov-2012 Items having a keyword or observed-property relationship to this subject term - Annual N2O measurements and associated data: AC0111, Cambridgeshire, 2009
- Annual N2O measurements and associated data: AC0111, Cambridgeshire, 2010-2011
- Annual N2O measurements and associated data: AC0111, Devon, 2008-2009
- Annual N2O measurements and associated data: AC0111, Devon, 2010
- Annual N2O measurements and associated data: AC0111, Devon, 2010-2011
- Annual N2O measurements and associated data: AC0111, Oxfordshire, 2010
- Annual N2O measurements and associated data: AC0111, Oxfordshire, 2010-2011
- Annual N2O measurements and associated data: AC0116, Ceredigion, 2011-2012
- Annual N2O measurements and associated data: AC0116, Ceredigion, 2013, urine
- Annual N2O measurements and associated data: AC0116, County Down, 2012, urine
- Annual N2O measurements and associated data: AC0116, County Down, 2012-2013
- Annual N2O measurements and associated data: AC0116, Devon, 2011-2012
- Annual N2O measurements and associated data: AC0116, Devon, 2012, urine
- Annual N2O measurements and associated data: AC0116, Dumfries, 2012, urine
- Annual N2O measurements and associated data: AC0116, Herefordshire, 2012-2013
- Annual N2O measurements and associated data: AC0116, Midlothian, 2012-2013
- Annual N2O measurements and associated data: AC0116, Norfolk, 2011-2012
- Annual N2O measurements and associated data: AC0116, Warwickshire, 2013, urine
- Annual N2O measurements and associated data: AC0213, Devon, 2010-2011
- Annual N2O measurements and associated data: AC0213, Devon, 2012
- Annual N2O measurements and associated data: AC0213, Nottinghamshire, 2011, urine
- Annual N2O measurements and associated data: AC0213, Nottinghamshire, 2011-2012
- Annual N2O measurements and associated data: OPTI-N, Cheshire, 2004
- Annual N2O measurements and associated data: OPTI-N, East Yorkshire, 2005
- Annual N2O measurements and associated data: SLURRY-NR, Cambridgeshire, 2004
- Annual N2O measurements and associated data: SLURRY-NR, Devon, 2004
- Annual N2O measurements and associated data: SLURRY-NR, Nottinghamshire, 2005
- Continuous water quality monitoring results for the Carnon river
- Control samples for ph determination in low ionic strength waters
- Data from laboratory analysis at Ebble upstream site, Hampshire Avon catchment
- Data from laboratory analysis for Burracott site, Neet catchment
- Data from laboratory analysis for Ebble downstream site, Hampshire Avon catchment
- Data from laboratory analysis of water samples, Caudworthy Water at Caudworthy Ford, Tamar catchment
- Data from laboratory analysis of water samples, Sem at Cool's Cottage site, Hampshire Avon catchment
- Data from laboratory analysis of water samples, Sem at Priors Farm, Hampshire Avon catchment
- Data from laboratory analysis of water samples, Winnacott Bridge at Caudworthy Ford, Tamar catchment
- Data from laboratory analysis of water samples, Wylye at Brixton Deverill site, Hampshire Avon catchment
- Data from laboratory analysis of water samples, Wylye at Kingston Deverill site, Hampshire Avon catchment
- Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft
- Environmental assessment of selected abandoned minewaters in the North East region
- Evaluation of field pH meters : summary report
- Investigation into the cause of high pH in the Budleigh Brook
- Newby Beck Catchment Outlet Discharge and Water Quality
- Newby Beck Catchment Outlet YSI QC file
- Newby Beck Catchment Outlet YSI Sonde
- Newby Beck Control Sub-Catchment Monthly Grab Samples
- Newby Beck Mitigation Sub-Catchment Monthly Grab Samples
- Newby Beck Outlet laboratory-analyzed samples
- Newby Beck Outlet monthly grab samples
- Newby Beck Outlet YSI Sonde Dataset
- Pow Beck Control Sub-Catchment Monthly Grab Samples
- Pow Beck Mitigation Sub-Catchment Monthly Grab Samples
- Pow Beck Outlet monthly grab samples
- Pow Beck Outlet YSI Sonde Dataset
- Pow Outlet YSI Sonde
- Strategy for the use of field instrumentation in water quality monitoring
- Syngenta Pond Physchem Data (2000)
- Syngenta Pond Physchem Data (2002)
- Syngenta Pond Physchem Data (2003)
- Syngenta Pond Physchem Data (2004)
- Thackthwaite Beck Catchment Outlet laboratory-analysed samples Dataset
- Thackthwaite Beck Control Sub-Catchment Monthly Grab Samples
- Thackthwaite Beck Mitigation Sub-Catchment Monthly Grab Samples
- Thackthwaite Beck Outlet monthly grab samples
- The Chemistry of Blended Cements and Backfills Intended for use in Radioactive Waste Disposal
- Un-ionised ammonia in north west estuaries using 1992/3 data
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