Role of Chemical Properties of Clays in Soil Science

Buehrer, T. F.

doi:10.1346/ccmn.1952.0010120

Cited by 4 publications

(3 citation statements)

References 54 publications

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“…The standard deviation values of each method indicate that the experiment was conducted uniformly. Since calcium can be readily displaced by NH4 + in the interlayer (Buehrer, 1952;Carroll, 1959) as in the case of M2, there is a possibility that it may have been removed during the washing process, explaining its low calcium composition (0.127%). The supernatant was discarded every washing step and it may contain calcium that exchanged with NH4…”

Section: Percentage Of Iron In the Brick Samplementioning

confidence: 99%

“…However, since magnesium can also be found in the clay's interlayer, it is capable of ion exchange with NH4 + (Buehrer, 1952;Carroll, 1959) and may have been removed during the washing process, thus, compared to the other extraction methods, this resulted to the relatively lower percentage value of M2 (2.346%). From the extraction procedure of M2, the brick sample residue was washed three times with NH4Cl and the supernatant liquid was discarded every step.…”

Section: Percentage Of Iron In the Brick Samplementioning

confidence: 99%

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Extraction Methods for Quantifying Iron, Calcium and Magnesium in a Historic Brickwork Produced During the Spanish Colonial Period in the Philippines

Cayme

Aniano

2015

KIMIKA

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This study demonstrates the feasibility of performing chemical analyses on heritage materials in the Philippines. Four extraction methods were evaluated based on the percentage of iron, calcium and magnesium in a clay brick sample obtained from an old Spanish colonial period church at Ilocos Norte. Aqua regia (1:3 HNO3:HCl, v/v) solvent was used to extract these elements by conventional hot plate digestion. The extraction methods are: digesting the sample directly with aqua regia (M1), sample pre-digested with NH4Cl and ethyl alcohol prior to the actual digestion (M2) and soaking the sample with aqua regia for 24 hours (M3) and 48 hours (M4) before digestion. Atomic absorption spectroscopy (AAS) was employed to quantify the concentration of the intended elements. The percentage composition of iron ranges from 4.193 to 4.418%, calcium from 0.123 to 0.203%, and magnesium from 2.346 to 2.458%, respectively. Energy-dispersive X-ray spectroscopy (EDX) analysis was done to support the data obtained from AAS. M1 was more effective in extracting calcium from the brick sample, while M2, M3 and M4 were useful for extracting iron and magnesium. Infrared spectroscopy (IR) provided a basic mineralogical composition of the sample, with peaks that were attributed to quartz, kaolinite, calcite, silicates and hematite.

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Section: Percentage Of Iron In the Brick Samplementioning

confidence: 99%

Section: Percentage Of Iron In the Brick Samplementioning

confidence: 99%

Extraction Methods for Quantifying Iron, Calcium and Magnesium in a Historic Brickwork Produced During the Spanish Colonial Period in the Philippines

Cayme

Aniano

2015

KIMIKA

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“…Other suggested references on ion exchange include the following: Barrer (1949); Buehrer (1952); Chatterjee (1949); Lewis (1952); and Thomas arid Frysinger (1956).…”

Section: Cation Exchange In Cliay Mineralsmentioning

confidence: 99%

Ion-exchange minerals and disposal of radioactive wastes-- A survey of literature

Robinson¹

1962

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Ion-exchange property of minerals.______________________________ 2 Radioactive waste disposal____________________________________ 3 Acknowledgements-___________________________________________ 4 Adsorption and ion exchange: General.______________________________ Colloid science ________________________________________________ 4 Colloids defined._______________________.__.______^___^___ 5 Classification of colloids.___________________________________ 5 Size of colloidal particles.__________________________________ 5 Examples of colloids.______________________________________

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Clays and Clay Polymer Composites for Electrokinetic Remediation of Soil

Janeni

Adassooriya

2021

Electrokinetic Remediation for Environmental Security and Sustainability

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Role of Chemical Properties of Clays in Soil Science

Cited by 4 publications

References 54 publications

Extraction Methods for Quantifying Iron, Calcium and Magnesium in a Historic Brickwork Produced During the Spanish Colonial Period in the Philippines

Extraction Methods for Quantifying Iron, Calcium and Magnesium in a Historic Brickwork Produced During the Spanish Colonial Period in the Philippines

Ion-exchange minerals and disposal of radioactive wastes-- A survey of literature

Clays and Clay Polymer Composites for Electrokinetic Remediation of Soil

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