CALCIUM CARBONATE, REAGENTPLUS(R), >=99&

Description_x000D_ General description_x000D_ Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals. It is an inexpensive, non-toxic and easily available reagent with a wide range of applications such as uptake of CO2 and extraction of heavy metals and arsenic from ground water. Its crystals exist as 3 different polymorphs namely, calcite, aragonite, and vaterite. The kinetics of pyrolysis of calcium carbonate under non-isothermal conditions have been investigated._x000D_ Application_x000D_ Calcium carbonate may be used:_x000D_ • As a pore generating agent to prepare porous ceramics._x000D_ • As chelometric standard for the standardization of EDTA solution._x000D_ • To extract aluminium by microwave induced thermal activation of coal fly ash (CFA)._x000D_ Iron-Catalyzed Efficient Synthesis of Amides from Aldehydes and Amine Hydrochloride Salts_x000D_ Iron-Catalyzed Efficient Synthesis of Amides from Aldehydes and Amine Hydrochloride Salts_x000D_ Packaging_x000D_ 500 g in poly bottle_x000D_ Legal Information_x000D_ ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC