A University of Nebraska-Lincoln research team has identified new microscopic players in the global carbon cycle, a discovery ...

A research team has shown that methanogens, micro-organisms ubiquitous in low-oxygen environments like aquifers, soil and even permafrost, can propel their growth by dissolving calcium carbonate, one ...

CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble ...

A University of Nebraska–Lincoln research team has identified new microscopic players in the global carbon cycle, a discovery that paints a clearer ...

Sidewalk chalk is made from calcium and sulfate, which makes calcium sulfate. One of the most common chemicals connected to calcium is called “carbonate”, and together they make calcium carbonate.

However, it's important to note that the method proved to be far more effective in "hard" water with a high calcium carbonate content. In a sample with 300 milligrams of calcium carbonate per ...

For example, boiling a water sample with 300 milligrams of calcium carbonate in each liter removed as much as 90 percent of the free-floating NMPs. Roughly 25 percent were removed by boiling soft ...