900500

Calcium carbonate

anhydrous, free-flowing, Redi-Dri^™, ReagentPlus^®, ≥99%

• Linear Formula: CaCO₃
• CAS Number: 471-34-1
• Molecular Weight: 100.09
• Beilstein/REAXYS Number: 8008338
• EC Number: 207-439-9
• MDL number: MFCD00010906
• UNSPSC Code: 12352300
• PubChem Substance ID: 24892891
• NACRES: NA.21
• Assay: ≥99%
• Grade: anhydrous
• Form: powder

Properties

• grade: anhydrous
• Quality Level: 100
• product line: ReagentPlus^®; Redi-Dri^™
• assay: ≥99%
• form: powder
• quality: free-flowing
• pH: 8
• density: 2.93 g/mL at 25 °C (lit.)
• SMILES string: [Ca++].[O-]C([O-])=O
• InChI: 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
• Inchi Key: VTYYLEPIZMXCLO-UHFFFAOYSA-L

Description

General description

Calcium carbonate is a calcium salt commonly found in shells and skeleton of marine animals.[1] 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.[2][3] Its crystals exist as 3 different polymorphs namely, calcite, aragonite, and vaterite.[3] The kinetics of pyrolysis of calcium carbonate under non-isothermal conditions have been investigated.[4]

Application

Calcium carbonate may be used:

• As a pore generating agent to prepare porous ceramics.[5]
• As chelometric standard for the standardization of EDTA solution.[6]
• To extract aluminium by microwave induced thermal activation of coal fly ash (CFA).[7]

Iron-Catalyzed Efficient Synthesis of Amides from Aldehydes and Amine Hydrochloride Salts

Iron-Catalyzed Efficient Synthesis of Amides from Aldehydes and Amine Hydrochloride Salts

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable