GB2008772A - Determination of the Partial Pressure of Water Vapour in a Mixture of Gases - Google Patents
Determination of the Partial Pressure of Water Vapour in a Mixture of GasesInfo
- Publication number
- GB2008772A GB2008772A GB7846518A GB7846518A GB2008772A GB 2008772 A GB2008772 A GB 2008772A GB 7846518 A GB7846518 A GB 7846518A GB 7846518 A GB7846518 A GB 7846518A GB 2008772 A GB2008772 A GB 2008772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- water vapour
- gases
- partial pressure
- determination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 6
- 239000000203 mixture Substances 0.000 title abstract 5
- 239000007789 gas Substances 0.000 title abstract 4
- 239000003792 electrolyte Substances 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
- G01N27/423—Coulometry
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Sampling And Sample Adjustment (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Air Conditioning Control Device (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
A method of, and apparatus for, determination of the partial pressure of water vapour in a mixture of gases. The mixture is allowed to impinge on one side of one or more membrane permeable to water vapour (6, 7). Any water vapour in the mixture diffuses through the membrane and is absorbed in a strongly hygroscopic electrolyte (4). A DC voltage is then passed through the electrolyte by. means of two electrodes (5) on opposite polarity. The water is decomposed yielding hydrogen and oxygen gases which are removed from the electrolyte in such manner as to prevent ingress of atmospheric moisture, and the current produced during the electrolytic decomposition is measured, the magnitude of the current being proportional to the partial pressure of water vapour in the mixture of gases. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BG7700037911A BG24904A1 (en) | 1977-11-29 | 1977-11-29 | Electrochemical method and device for determining the water steam partial preaaure in gases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2008772A true GB2008772A (en) | 1979-06-06 |
| GB2008772B GB2008772B (en) | 1982-05-19 |
Family
ID=3904007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7846518A Expired GB2008772B (en) | 1977-11-29 | 1978-11-29 | Determination of the partial pressure of water vapour in a gases |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5485094A (en) |
| BG (1) | BG24904A1 (en) |
| CS (1) | CS237752B1 (en) |
| DD (1) | DD160950A3 (en) |
| DE (1) | DE2851299A1 (en) |
| FR (1) | FR2410273A1 (en) |
| GB (1) | GB2008772B (en) |
| HU (1) | HU182748B (en) |
| IT (1) | IT1174345B (en) |
| SU (1) | SU940044A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1672362A1 (en) * | 2004-12-14 | 2006-06-21 | Mocon, Inc. | Coulometric water vapor sensor |
| US7624622B1 (en) | 2006-05-26 | 2009-12-01 | Mocon, Inc. | Method of measuring the transmission rate of a permeant through a container and determining shelf life of a packaged product within the container |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3525774A1 (en) * | 1985-07-19 | 1987-01-29 | Hoelter Heinz | Method for stabilising semiconductor gas sensors by increasing the pollutant concentrations, preferably for motor vehicles |
| RU2607825C2 (en) * | 2014-09-29 | 2017-01-20 | Павел Евгеньевич Александров | Solid-state electrochemical sensor for determining water vapors partial pressures in randomly selected gas mixture |
-
1977
- 1977-11-29 BG BG7700037911A patent/BG24904A1/en unknown
-
1978
- 1978-11-20 CS CS787551A patent/CS237752B1/en unknown
- 1978-11-23 SU SU787770368A patent/SU940044A1/en active
- 1978-11-24 HU HU78ZE467A patent/HU182748B/en not_active IP Right Cessation
- 1978-11-27 DD DD78209397A patent/DD160950A3/en not_active IP Right Cessation
- 1978-11-27 IT IT52082/78A patent/IT1174345B/en active
- 1978-11-27 DE DE19782851299 patent/DE2851299A1/en not_active Withdrawn
- 1978-11-28 FR FR7833569A patent/FR2410273A1/en active Granted
- 1978-11-29 JP JP14770978A patent/JPS5485094A/en active Pending
- 1978-11-29 GB GB7846518A patent/GB2008772B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1672362A1 (en) * | 2004-12-14 | 2006-06-21 | Mocon, Inc. | Coulometric water vapor sensor |
| EP1798547A1 (en) * | 2004-12-14 | 2007-06-20 | Mocon, Inc. | Coulometric water vapor sensor |
| US7569128B2 (en) | 2004-12-14 | 2009-08-04 | Mocon, Inc. | Coulometric water vapor sensor |
| US7624622B1 (en) | 2006-05-26 | 2009-12-01 | Mocon, Inc. | Method of measuring the transmission rate of a permeant through a container and determining shelf life of a packaged product within the container |
Also Published As
| Publication number | Publication date |
|---|---|
| BG24904A1 (en) | 1978-06-15 |
| DE2851299A1 (en) | 1979-05-31 |
| FR2410273B3 (en) | 1981-08-28 |
| IT1174345B (en) | 1987-07-01 |
| GB2008772B (en) | 1982-05-19 |
| FR2410273A1 (en) | 1979-06-22 |
| SU940044A1 (en) | 1982-06-30 |
| JPS5485094A (en) | 1979-07-06 |
| CS237752B1 (en) | 1985-10-16 |
| DD160950A3 (en) | 1984-07-04 |
| IT7852082A0 (en) | 1978-11-27 |
| HU182748B (en) | 1984-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |