The chemical formula of calcium carbonate is CaCO3.
Physical Properties of Calcium Carbonate:
| Properties | Details |
| Appearance | White, odorless powder |
| Crystal Structure | Hexagonal or trigonal |
| Density | 2.71 g/cm³ |
| Hardness | 3 on the Mohs scale |
| Melting Point | Decomposes at around 825°C (1517°F) |
| pH | Basic (alkaline) |
| Refractive Index | 1.59 |
| Solubility | Insoluble in water |
| State | Solid |
Chemical Properties of Calcium Carbonate:
| Properties | Details |
| Chemical Formula | CaCO₃ |
| Effervescence | Calcium carbonate exhibits effervescence when reacted with acids |
| Hygroscopicity | Calcium carbonate is slightly hygroscopic |
| Reaction with Acids | Reacts with acids to produce carbon dioxide and a salt |
| Reaction with Carbon Dioxide | Reacts with carbon dioxide to form calcium bicarbonate |
| Reaction with Heat | Decomposes upon heating to form calcium oxide and carbon dioxide |
| Reaction with Water | Insoluble in water |
| Reactivity with Other Metals | Calcium carbonate reacts with certain metals to form corresponding metal carbonates |
| Reactivity with Oxidizing Agents | It can react with strong oxidizing agents |
| Thermal Decomposition | Decomposes at high temperatures to form calcium oxide and carbon dioxide |
Reaction Of Calcium Carbonate
Alkali Metal
| Alkali Metal | Reaction with Calcium Carbonate |
| Lithium (Li) | 2Li + CaCO3 react and changes into Li2CO3 + Ca |
| Sodium (Na) | 2Na + CaCO3 react and changes into Na2CO3 + Ca |
| Potassium (K) | 2K + CaCO3 react and changes into K2CO3 + Ca |
| Rubidium (Rb) | 2Rb + CaCO3 react and changes into Rb2CO3 + Ca |
| Cesium (Cs) | 2Cs + CaCO3 react and changes into Cs2CO3 + Ca |
Alkaline Earth Metal
| Alkaline Earth Metal | Reaction with Calcium Carbonate |
| Beryllium (Be) | No reaction with calcium carbonate |
| Magnesium (Mg) | Mg + CaCO3 react and changes into MgCO3 + Ca |
| Calcium (Ca) | CaCO3 + Ca react and changes into 2CaO + CO2 |
| Strontium (Sr) | Sr + CaCO3 react and changes into SrCO3 + Ca |
| Barium (Ba) | Ba + CaCO3 react and changes into BaCO3 + Ca |
Transition Metal
| Transition Metal | Reaction with Calcium Carbonate |
| Scandium (Sc) | No reaction with calcium carbonate |
| Titanium (Ti) | Ti + 2CaCO3 react and changes into TiO2 + 2CaO + 2CO2 |
| Vanadium (V) | 2V + 5CaCO3 + 11/2O2 react and changes into 2V2O5 + 5CaO + 5CO2 |
| Chromium (Cr) | 2Cr + 3CaCO3 + 2O2 react and changes into 2Cr2O3 + 3CO2 + 3CaO |
| Manganese (Mn) | 2Mn + 3CaCO3 + 2O2 react and changes into 2MnO2 + 3CO2 + 3CaO |
| Iron (Fe) | 2Fe + 3CaCO3 + 2O2 react and changes into 2FeO + 3CO2 + 3CaO |
Non-Transition Metal
| Non-Transition Metal | Reaction with Calcium Carbonate |
| Boron (B) | No reaction with calcium carbonate |
| Carbon (C) | CaCO3 + 2HCl react and changes into CaCl2 + CO2 + H2O |
| Nitrogen (N) | No reaction with calcium carbonate |
| Oxygen (O) | 2CaCO3 + 2SO2 + O2 react and changes into 2CaSO4 + 2CO2 |
| Fluorine (F) | No reaction with calcium carbonate |
| Neon (Ne) | No reaction with calcium carbonate |
| Aluminum (Al) | 2Al + 3CaCO3 + 3H2O react and changes into Al2O3 + 3CO2 + 3Ca(OH)2 |
| Silicon (Si) | No reaction with calcium carbonate |
| Phosphorus (P) | No reaction with calcium carbonate |
| Sulfur (S) | CaCO3 + 2H2SO4 react and changes into CaSO4 + H2O + CO2 + SO2 |
| Chlorine (Cl) | CaCO3 + 2HCl react and changes into CaCl2 + CO2 + H2O |
Non-Metal
| Non-Metal | Reaction with Calcium Carbonate |
| Hydrogen (H) | CaCO3 + 2HCl react and changes into CaCl2 + CO2 + H2O |
| Helium (He) | No reaction with calcium carbonate |
| Boron (B) | No reaction with calcium carbonate |
| Carbon (C) | CaCO3 + 2HCl react and changes into CaCl2 + CO2 + H2O |
| Nitrogen (N) | No reaction with calcium carbonate |
| Oxygen (O) | 2CaCO3 + 2SO2 + O2 react and changes into 2CaSO4 + 2CO2 |
| Fluorine (F) | No reaction with calcium carbonate |
| Neon (Ne) | No reaction with calcium carbonate |
| Phosphorus (P) | No reaction with calcium carbonate |
| Sulfur (S) | CaCO3 + 2H2SO4 react and changes into CaSO4 + H2O + CO2 + SO2 |
| Chlorine (Cl) | CaCO3 + 2HCl react and changes into CaCl2 + CO2 + H2O |
Metalloid
| Metalloid | Reaction with Calcium Carbonate |
| Boron (B) | No reaction with calcium carbonate |
| Silicon (Si) | No reaction with calcium carbonate |
| Germanium (Ge) | No reaction with calcium carbonate |
| Arsenic (As) | As2O3 + 3CaCO3 + 3C react and changes into 2As + 3CO2 + 3CaO |
| Antimony (Sb) | No reaction with calcium carbonate |
| Tellurium (Te) | No reaction with calcium carbonate |