900500

Calciumcarbonat

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

• Lineare Formel: CaCO₃
• CAS-Nummer: 471-34-1
• Molekulargewicht: 100.09
• Beilstein: 8008338
• EG-Nummer: 207-439-9
• MDL-Nummer: MFCD00010906
• UNSPSC-Code: 12352300
• PubChem Substanz-ID: 24892891
• NACRES: NA.21
• Assay: ≥99%
• Form: powder

Eigenschaften

• Qualität: anhydrous; free-flowing
• Qualitätsniveau: 100
• Produktlinie: ReagentPlus^®; Redi-Dri^™
• Assay: ≥99%
• Form: powder
• pH-Wert: 8
• Dichte: 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
• InChIKey: VTYYLEPIZMXCLO-UHFFFAOYSA-L

Beschreibung

Allgemeine Beschreibung

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]

Anwendung

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

Rechtliche Hinweise

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

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

Sicherheitshinweise

• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: nwg
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable