the vesicomyid clam Calyptogena magnifica and the mytilid Bathymodiolus thermophilus , deployed more than 100 m from any active hydrothermal vent location at 20°50′N, 109°06′W on the East Pacific Rise indicates significant variation of calcium carbonate dissolution in in-situ exposures of more ...
An overview is given of the thermodynamics and kinetics of CaCO3 formation and dissolution and how surface and nanoparticulate chemistry are important in understanding reactivity. Topics covered are major marine carbonate materials, carbonate mineral precipitation and dissolution kinetics relevant to seawater...
calcium carbonate equivalent (Sidebar 9.10). The application rate of a liming material must be adjusted based on its neutralizing value in comparison to pure lime. Additionally, the application rate should be adjusted based on the presence of any impurities in the liming material. The effectiveness...
Improved Dissolution Rate of Poorly Soluble Drug by Incorporation of Buffers This study focused on comparing dissolution rates of indomethacin after co-compressing with three different buffers (calcium carbonate, sodium carbonate, a... D Preechagoon,A Udomprateep,G Manwiwattanagul - 《Drug Development...
(2012): Dissolution and re-crystallization processes of active carbonate in soil developed on Tufa. Soil Sci. Soc. Am. J. 76, 1606-1613.TamirG, Shenker M, Heller H et al. Dissolution and re crystallization processes of active calcium carbonate in soil developedontufa.SoilScienceSocietyof...
of CaCO3at 150 and 200 m at ocean stations ALOHA and PAPA, implying that a large portion of pelagic calcium carbonate is remineralised within the photic zone; this extensive shallow dissolution explains the apparent discrepancy between previous estimates of CaCO3production derived from satellite ...
A series of the calcium-nickel carbonate solid solutions [(Ca1−xNix)CO3] were synthesized and their dissolution in N2-degassed water (NDW) and CO2-saturated water (CSW) at 25 °C was experimentally investigated. During dissolution of the syntheti
The possibility of ACC entrapment can be evaluated in the light of ACC particle sizes and the rate of carbonate deposition. If the thickness of the carbonate layer formed during the period of ACC trans- formation significantly exceeds the size of ACC particles, then the latter can be – at ...
A comparison of Atlantic-Pacific carbonate-dissolution patterns indicates a tendency for out-of-phase preservation patterns in 180 Stages 1 and 2, and an in-phase dissolution event during Stage 4. The out-of-phase pattern may partially reflect variations in the production rate of North Atlantic ...
We have measured the surface controlled dissolution rates of natural calcium carbonate minerals (limestone and marble) in H2O–CO2 solutions by using free drift batch experiments under closed system conditions with respect to CO2, at 10°C with an initial partial pressure of carbon dioxide of 5 ...