Calcium carbonate
SIGALD/239216 - ACS reagent, ≥99.0%, powder
CAS Number: 471-34-1
Empirical Formula (Hill Notation): CCaO3
Molecular Weight: 100.09
EC Number: 207-439-9
MDL Number: MFCD00010906
Linear Formula: CaCO3
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 239216-100G
This image depicts SKU: 239216-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 239216-500G
This image depicts SKU: 239216-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 239216-1KG
This image depicts SKU: 239216-1KG
| anion traces | chloride (Cl-): ≤0.001% |
| fluoride (F-): ≤0.0015% | |
| sulfate (SO42-): ≤0.01% | |
| assay | ≥99.0% |
| cation traces | Ba: ≤0.005% |
| Fe: ≤0.003% | |
| heavy metals: ≤0.001% (by ICP-OES) | |
| K: ≤0.01% | |
| Mg: ≤0.02% | |
| Na: ≤0.1% | |
| NH4+: ≤0.003% | |
| Sr: ≤0.1% | |
| density | 2.93 g/mL at 25 °C (lit.) |
| form | powder |
| grade | ACS reagent |
| impurities | ≤0.002 meq/g water-soluble titr. base |
| ≤0.005% oxidizers | |
| ≤0.01% insol. dil. HCl | |
| ≤0.01% NH4OH pptd. | |
| InChI | 1S/CH2O3.Ca/c2-1(3)4;/h(H |
| InChI key | VTYYLEPIZMXCLO-UHFFFAOYSA |
| pH | 8 |
| Quality Level | 200  |
| SMILES string | [Ca++].[O-]C([O-])=O |
| Application: | Calcium carbonate can be used as a precursor to prepare Pd/CaCO3, which can be used as a catalyst: • In Miyaura-Suzuki cross-coupling reactions. • In the ligand-free Stille cross-coupling reaction between aryl halides and tributylphenyltin to synthesize biphenyls. It can also be used as a base in the Pd-catalyzed regioselective Heck reaction of fluorinated haloaryls with olefins to synthesize substituted olefins. |
| General description: | CaCO3 occurs naturally as the principal constituent of limestone, marble, and chalk, which can be prepared by the precipitation from dissolved calcium hydroxide and carbon dioxide. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Go to Redi-Dri™ Product Listing 795445 |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 12 kg in fiber drum |
| Packaging: | 2.5 kg in poly drum |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% |
| Density | 2.93 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |