Calcium carbonate overdose

Calcium-Channel Blocker Overdose

1522-8401/$ see fro doi:10.1016/j.cpem.2 Department of Eme Children’s Hospit RI 02903, USA. Reprint requests and Department of E Children’s Hospit RI 02903, USA. Calcium-channel blockers (CCB) were first developed in the 1960s. Since then, the list of formulations and variety of uses has increased significantly. Unfortunately, toxic exposures to CCBs have also increased since their debut. This ...

Modelling calcium carbonate biomineralisation processes.

The structure-directing influence of the organic dicarboxylates malonate, succinate, glutarate and adipate as templating species on the hydrothermal formation of CaCO(3) was investigated at different temperatures (60, 80, 90, 120, 150 and 190 degrees C) and with a range of molar ratios of [Ca(2+)]/[templating species] (20, 14.3, 10, 7.7, 5, 1, 0.5 and 0.33). In the presence of the dicarboxylate...

Experiments in Calcium Carbonate Cementation

Carbonate sediments may be cemented by a variety of forms of aragonite. calcite. or dolomite. The mineralogy of the cement has been regarded by most investigators as the product of the physico-chemical environment within the sediment at the time of cementation. This has been a reasonable working hypothesis until it was recently demonstrated that many different kinds of cement may occur in beach...

Stable prenucleation calcium carbonate clusters.

Calcium carbonate forms scales, geological deposits, biominerals, and ocean sediments. Huge amounts of carbon dioxide are retained as carbonate ions, and calcium ions represent a major contribution to water hardness. Despite its relevance, little is known about the precipitation mechanism of calcium carbonate, and specified complex crystal structures challenge the classical view on nucleation c...

Bacterial Modification of Calcium Carbonate