Carbon Dioxide Solubility in Water

Dodds, W. S.; Stutzman, Leroy F.; Sollami, B. J.

doi:10.1021/i460001a018

Cited by 180 publications

(145 citation statements)

References 2 publications

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“…This ensured that desired content of CO 2 was dissolved in the mixing water (ca. 1.090 mol of CO 2 L -1 of water; Dodds et al, 1956). …”

Section: Preparation Of Carbonated Watermentioning

confidence: 99%

“…Theoretical concentration of CO 2 dissolved in water carbonated under 40 bar of CO 2 is ~1.090 mol L -1 (Dodds et al, 1956). When the same volume of carbonated water as used for paste mixing was admitted to the mixing bowl alone, the environmental concentration of CO 2 raised and stabilized at ca.…”

Section: Co 2 Concentration In the Environmental Chambermentioning

confidence: 99%

“…This involved use of CO 2 dissolved in mixing water, either by dry ice dissolution or by passing CO 2 gas through the water until it was saturated. These strategies resulted only in a slight carbonation of cementitious materials (an increase in CaCO 3 and a reduction in Ca(OH) 2 contents), due to a relatively low solubility of CO 2 in water under atmospheric pressure (0.039 mol L -1 ; Dodds, Stutzman, & Sollami, 1956). Therefore, one of the objectives of this study was to investigate the use of highly carbonated mixing water and gaseous CO 2 to sequestrate carbon dioxide in cement-based materials during mixing process.…”

Section: Introductionmentioning

confidence: 99%

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CO2 Sequestration in Cement-Based Materials During Mixing Process Using Carbonated Water and Gaseous CO2

Kwasny¹,

Basheer²,

Russell³

et al. 2014

Proceedings of the 4th International Conference on the Durability of Concrete Structures

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This paper presents selected findings from a recently completed research project, aimed at the investigation of CO 2 sequestration in cement-based materials during the early stages of hydration when the cement paste is being mixed. Portland cement pastes were carbonated during the mixing process, using both carbonated water and gaseous CO 2 , and their properties were compared to the control non-carbonated mix. All mixes were prepared in a purpose-designed chamber that permitted carbonated water and gaseous CO 2 to be mixed with the cementbased materials during the mixing process, without losses of CO 2 to the external environment. Temperature measurements taken of the samples during mixing were used to evaluate the influence of carbonation on the properties of fresh pastes and their early hydration. Changes in the composition of the hardened pastes, due to the above-mentioned processes, were studied using thermogravimetric (TG) analysis, X ray diffractometry (XRD), and Fourier transform infrared spectroscopy (FTIR). Scanning electron microscopy (SEM) in conjunction with energy-dispersive X-ray spectroscopy (EDXS) were used to investigate physical (morphological) and chemical differences between non-carbonated and carbonated samples.It was found that, when compared to the non-carbonated mixes, the rate of the initial hydration of carbonated pastes increased, but the later hydration rate was decreased dramatically. TG, XRD, and FTIR spectroscopy revealed a substantial increase in the CaCO 3 content and decrease in the Ca(OH) 2 content in carbonated pastes. SEM showed substantial differences in the microstructure of the carbonated mixes when compared to the noncarbonated ones; needle-and lichen-like hydrates, with a high content of CO 2 , covered the surface of the fractured carbonated samples.

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“…This ensured that desired content of CO 2 was dissolved in the mixing water (ca. 1.090 mol of CO 2 L -1 of water; Dodds et al, 1956). …”

Section: Preparation Of Carbonated Watermentioning

confidence: 99%

Section: Co 2 Concentration In the Environmental Chambermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CO2 Sequestration in Cement-Based Materials During Mixing Process Using Carbonated Water and Gaseous CO2

Kwasny¹,

Basheer²,

Russell³

et al. 2014

Proceedings of the 4th International Conference on the Durability of Concrete Structures

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“…We presume this insensitivity is due to the low solubility of CO 2 in water (< 0.5 g / L, room temperature, 1 atm) 28 . The paper sensor is, therefore, primarily sensitive to changes in the amount of moisture present in paper, and is not affected by the concentration of CO 2 in human breath (<5%).…”

mentioning

confidence: 99%

Paper‐Based Electrical Respiration Sensor

et al. 2016

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Breathing is one of the primary vital signs used to diagnose the health status of patients; it is related to many common disorders and diseases, ranging from pulmonary and cardiovascular diseases to sleep-related disorders. Current methods of monitoring breathing require cumbersome, inconvenient and often expensive devices; this requirement sets practical limitations on the frequency and duration of measurements. This article describes a paper-based moisture sensor that uses the hygroscopic character of paper (i.e. the ability of paper to adsorb water reversibly from the surrounding environment) to measure patterns and rate of respiration by converting the changes in humidity caused by cycles of inhalation and exhalation to electrical signals. The changing levels of humidity that occur in a cycle causes a corresponding change in the ionic conductivity of the sensor, which can be measured electrically. By combining the paper sensor with conventional electronics, data concerning respiration can be transmitted to a nearby smartphone or tablet computer for post-processing, and subsequently stored on a cloud server, or they can be further analysed by a healthcare professional remotely. This means of sensing provides a new and practical solution to the problem of recording and analysing patterns of breathing.3

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“…In a first attempt they tentatively explained this phenomenon in terms of sorption in the water trapped in the gluten protein network. In our opinion, however, although the solubility of carbon dioxide in water is greater than the solubility of oxygen in water (768 cm 3 /L (Dodds et al, 1956) and 31.6 at 25 °C and 1 atm (Perry and Green, 1997), respectively), this relationship stays proportional throughout the relative humidity range, with a constant 2 2 ⁄ ratio of 24. Therefore the increase in carbon dioxide permeability with relative humidity cannot be completely explained by the carbon dioxide sorbed in the water contained in the film.…”

Section: Rh (%)mentioning

confidence: 65%

Development of active bioplastics based on wheat proteins and natural antimicrobials for food packaging applications

Grimaldo¹,

Paz²

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Carbon Dioxide Solubility in Water

Cited by 180 publications

References 2 publications

CO2 Sequestration in Cement-Based Materials During Mixing Process Using Carbonated Water and Gaseous CO2

CO2 Sequestration in Cement-Based Materials During Mixing Process Using Carbonated Water and Gaseous CO2

Paper‐Based Electrical Respiration Sensor

Development of active bioplastics based on wheat proteins and natural antimicrobials for food packaging applications

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