Carbon tetrachloride
| Carbon tetrachloride | |
|---|---|
 |
 |
| IUPAC name | Tetrachloromethane |
| Other names | Tetrachloromethane, Benziform, Benzinoform, Carbon chloride, Carbon tet, Freon 10, Halon 104, Methane tetrachloride, Perchloromethane, Tetraform, Tetrasol |
| Identifiers | |
| CAS number | |
| PubChem | |
| EC number | 200-262-8 |
| KEGG | C07561 |
| ChEBI | CHEBI:27385 |
| RTECS number | FG4900000 |
| SMILES | ClC(Cl)(Cl)Cl |
| Properties | |
| Molecular formula | CCl4 |
| Molar mass | 153.82 g mol-1 |
| Appearance | colourless liquid |
| Odor | ether-like odor |
| Density | 1.5867 g cm−3 (liquid) 1.831 g cm−3 at −186 °C (solid) |
| Melting point |
-22.92 °C, 250 K, -9 °F |
| Boiling point |
76.72 °C, 350 K, 170 °F |
| Solubility in water | 0.081 g/100 mL (25 °C) |
| Solubility | soluble in alcohol, ether, chloroform, benzene, naphtha, CS2 |
| log P | 2.64 |
| Vapor pressure | 11.94 kPa at 20 °C |
| kH | 2.76x10-2 atm-cu m/mol |
| Refractive index (nD) | 1.4601 |
| Structure | |
| Crystal structure | Monoclinic |
| Molecular shape | Tetrahedral |
| Hazards | |
| MSDS | ICSC 0024 |
| EU classification | Carc. Cat. 3 Toxic (T) Dangerous for the environment (N) |
| EU Index | 602-008-00-5 |
| NFPA 704 |
0
3
0
|
| R-phrases | R23/24/25, R40, R48/23, R59, R52/53 |
| S-phrases | (S1/2), S23, S36/37, S45, S59, S61 |
| Flash point | Not flammable |
| Autoignition temperature |
982 °C |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
−135 kJ·mol−1 |
| Standard molar entropy S |
216 J·mol−1·K−1 |
| Related compounds | |
| Other cations | Silicon tetrachloride Germanium tetrachloride Tin tetrachloride Lead tetrachloride |
| Related chloromethanes | Chloromethane Dichloromethane Chloroform |
| Related compounds | Tetrafluoromethane Tetrabromomethane Tetraiodomethane |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Carbon tetrachloride, also known as carbon tet or Freon 10, is a chemical compound. Its chemical formula is CCl4. It contains carbon in its +4 oxidation state and chloride ions.
Contents |
Properties [change]
It is a colorless liquid. It smells like ether. It evaporates quite quickly. It can dissolve fats and oils as well as other stuff such as iodine. It doesn't burn, but it does make phosgene when heated to a high tempature.
Preparation [change]
It is made by reacting methane with chlorine. This reaction is similar to the burning of methane (reaction of methane with oxygen). Hydrogen chloride is a byproduct (left over substance). It used to be made by reacting carbon disulfide with chlorine. This reaction would produce sulfur(I) chloride.
Uses [change]
The uses of carbon tetrachloride have diminished lately because it is known to be damage people's health. People think it might damage the ozone layer. Today, it is rarely used for anything.
Previously, was used in fire extinguishers. It was also used to make freon, used in dry cleaning and as a refrigerant.
Safety [change]
Carbon tetrachloride is very poisonous to the liver, the kidneys and the nervous system; it might also cause cancer.
