Dry ice have chemical formula known as CO2.
Physical Properties of Dry Ice:
| Properties | Details |
| Appearance | Solid white or colorless blocks or pellets |
| Boiling Point | -78.5°C (-109.3°F) |
| Conductivity | Poor conductor of heat and electricity |
| Density | 1.56 g/cm³ (solid) |
| Melting Point | -78.5°C (-109.3°F) |
| Odor | No distinctive odor |
| Solubility | Insoluble in water |
| State | Solid at standard temperature and pressure |
| Sublimation Point | -78.5°C (-109.3°F) |
| Vapor Pressure | 1 atm at -78.5°C (-109.3°F) |
Chemical Properties of Dry Ice:
| Properties | Details |
| Acid/Base Properties | Acidic when dissolved in water, forms carbonic acid (H2CO3) |
| Chemical Formula | CO2 (carbon dioxide) |
| Flammability | Non-flammable |
| pH | Slightly acidic when dissolved in water |
| Reaction with Metals | Does not react with most metals |
| Reaction with Water | Sublimes directly to gas when exposed to water |
| Reactivity | Non-reactive with most common substances |
| Toxicity | Non-toxic in small quantities, can cause asphyxiation in high concentrations |
Reactions of dry ice with Alkali Metal
| Alkali Metal | Reaction with Dry Ice (CO2) |
| Lithium (Li) | no product formed among dry ice and lithium metal. |
| Sodium (Na) | Sodium metal counters with dry ice and resulting product → sodium carbonate (Na2CO3). |
| Potassium (K) | Potassium metal counters with dry ice and resulting product → potassium carbonate (K2CO3). |
| Rubidium (Rb) | Rubidium metal counters with dry ice and resulting product → rubidium carbonate (Rb2CO3). |
| Cesium (Cs) | Cesium metal counters with dry ice and resulting product → cesium carbonate (Cs2CO3). |
| Francium (Fr) | No reaction |
Reactions of dry ice with Alkaline Earth Metal
| Alkaline Earth Metal | Reaction with Dry Ice (CO2) |
| Beryllium (Be) | no product formed among dry ice and beryllium metal. |
| Magnesium (Mg) | no product formed among dry ice and magnesium metal. |
| Calcium (Ca) | no product formed among dry ice and calcium metal. |
| Strontium (Sr) | no product formed among dry ice and strontium metal. |
| Barium (Ba) | no product formed among dry ice and barium metal. |
| Radium (Ra) | no product formed among dry ice and radium metal. |
Reactions of dry ice with Transition Metal
| Transition Metal | Reaction with Dry Ice (CO2) |
| Iron (Fe) | Fe + 2CO2 react and convert into FeO + 2CO |
| Copper (Cu) | 2Cu + CO2 react and convert into 2CuO + C |
| Nickel (Ni) | no product formed among dry ice and nickel metal. |
| Silver (Ag) | 4Ag + 3CO2 react and convert into 2Ag2O + 2CO + C |
| Gold (Au) | no product formed among dry ice and gold metal. |
| Zinc (Zn) | no product formed among dry ice and zinc metal |
Reactions of dry ice with Non-Transition Metal
| Non-Transition Metal | Reaction with Dry Ice (CO2) |
| Hydrogen (H) | no product formed among dry ice and hydrogen gas. |
| Aluminum (Al) | no product formed among dry ice and aluminum metal. |
| Gallium (Ga) | no product formed among dry ice and gallium metal. |
| Silicon (Si) | no product formed among dry ice and silicon. |
| Phosphorus (P) | no product formed among dry ice and phosphorus. |
| Sulfur (S) | no product formed among dry ice and sulfur. |
| Chlorine (Cl) | no product formed among dry ice and chlorine gas. |
| Bromine (Br) | no product formed among dry ice and bromine liquid. |
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