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Calcite-dissolving bacteria: promising approach as bio-fertilizer [PDF]

open access: yesFrontiers in Microbiology
Calcium (Ca) is an essential macronutrient and a secondary messenger for the proper growth and functioning of plants. It is essential for membrane stability, cell integrity, cell division, and elongation.
Christina Lemson Hambo   +4 more
doaj   +2 more sources

Effects of temperature, pressure, and hydration on the microstructural characteristics and mechanical properties of calcite [PDF]

open access: yesFrontiers in Chemistry
Geotechnical geological disasters occur frequently in China. Especially under complex environmental conditions, the failure mode of rock and the change mechanism of its mechanical properties are not clear.
Xiaoyi Zhou   +8 more
doaj   +2 more sources

Investigation of Calcium and Magnesium Phosphate Crystals in Stones Treated with Diammonium Hydrogen Phosphate Conservation Product: Potential of Micro-Raman Spectroscopy

open access: yesCrystals, 2023
This study is aimed at investigating crystals (calcium and magnesium phosphates) formed due the interaction of an inorganic conservation treatment (diammonium hydrogen phosphate—DAP) with carbonatic (calcitic and dolomitic) stones through micro-Raman ...
Claudia Conti   +8 more
doaj   +1 more source

Ammonium N-(pyridin-2-ylmethyl)oxamate (AmPicOxam): A Novel Precursor of Calcium Oxalate Coating for Carbonate Stone Substrates

open access: yesMolecules, 2023
Ammonium N-(pyridin-2-ylmethyl)oxamate (AmPicOxam), synthesized from O-methyl-N-(pyridin-2-ylmethyl)oxamate, was spectroscopically and structurally characterized and assayed as a novel precursor for the protection and consolidation of carbonate stone ...
Anna Pintus   +14 more
doaj   +1 more source

Deep marine diagenesis, offshore Hawaii and Enewetak, with implications for older carbonates

open access: yesThe Depositional Record, 2023
Cenozoic limestones from Hawaii and Enewetak were studied to characterise diagenesis in deep sea water. Hawaii samples were from subsea outcrops of drowned Pleistocene reefs 150–1,505 m deep (maximum age 550–600 ka).
Arthur Saller, Charlotte Winterbottom
doaj   +1 more source

Effect of Fe3+ on Flotation Separation of Fluorite and Calcite in Sodium Silicate System

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. Fluorite and calcite are calcium-bearing minerals with similar physical and chemical properties.
Jiangfeng Ning   +5 more
doaj   +1 more source

Growth of Calcite in Confinement [PDF]

open access: yesCrystals, 2017
Slow growth of calcite in confinement is abundant in Nature and man made materials. There is ample evidence that such confined growth may create forces that fracture solids. The thermodynamic limits are well known but since confined crystal growth is transport limited and difficult to control in experiment we have almost no information on the ...
Lei Li   +3 more
openaire   +4 more sources

PVC mixtures’ mechanical properties with the addition of modified calcite as filler [PDF]

open access: yesHemijska Industrija, 2012
In this study mechanical properties of PVC mixtures (PVC, stabilizer, lubricant, filler) such as tensile strength, tensile elongation, breaking strength, and breaking elongation were investigated.
Vučinić Dušica R.   +4 more
doaj   +1 more source

Hydrophobic Carbonate Coatings on Pure Biodegradable Mg by Immersion in Carbonated Water: Formation Mechanism

open access: yesApplied Sciences, 2022
Mg is one of the few materials of choice for biodegradable implants, despite its rapid degradation when used without surface protection treatment. This study presents the effect of carbonation time on the formation of hydrophobic carbonate coatings grown
Monica Popa   +3 more
doaj   +1 more source

Validation by Molecular Dynamics of the Major Components of Sugarcane Vinasse, On a Surface of Calcium Carbonate (Calcite)

open access: yesMolecules, 2021
There is ongoing interest in the alcohol industry to significantly reduce and/or add value to the liquid residue, vinasse, produced after the distillation and rectification of ethanol from sugar cane.
Oscar Eduardo Rojas Álvarez   +3 more
doaj   +1 more source

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