Calcium carbonate
SIAL/795445 - anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99%
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
| anion traces | chloride (Cl-): ≤0.001% |
| fluoride (F-): ≤0.0015% | |
| sulfate (SO42-): ≤0.01% | |
| assay | ≥99% |
| 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 |
| anhydrous | |
| 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 |
| product line | Redi-Dri™ |
| quality | free-flowing |
| Quality Level | 200 ![]() |
| SMILES string | [Ca++].[O-]C([O-])=O |
| solubility | H2O: insoluble |
| Application: |
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| Features and Benefits: | • Increased efficiency – Eliminates time and effort of loosening hardened powders • Safety – Eliminates tools of force used to break up clumps • Ecology – Reduces waste as it does not stick to the packaging • Economy – Faster preparation and solvation increase productivity and reduce costs • Assured Quality – Excellent, expert-tested quality with no anti-caking agents • Flexible volumes – Available from research amounts to scale-up quantities |
| General description: | Calcium carbonate is an inorganic compound that is commonly used as a solid base catalyst in some organic transformations. It is also used as an acid scavenger and stabilizing agent for acid-sensitive compounds. Additionally, CaCO3 is the most widely used additive in plastic and elastomeric applications due to its wide availability. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| 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% |
| Density | 2.93 g/mL at 25 °C (lit.) |
| UNSPSC | 12352300 |

