Preparation method and principle of carbon tetrabromide – experimental plan and precautions

Carbon tetrabromide is an organic compound with the chemical formula CBr4. It can be prepared by reacting methane and bromine, the reaction formula is: CH4 + 4Br2 —→ CBr4 +
4HBr. Carbon tetrabromide can also be prepared by the reaction between carbon tetrachloride and bromide. Carbon tetrabromide has two crystal forms, crystal form II (or β) below 46.9°C and I (or β) above 46.9°C. or α). The single crystal has the C2/c space group and the unit cell parameter is a
= 20.9, b = 12.1, c = 21.2 (.10−1 nm), β = 110.5°. The bond energy of C-Br is 235
kJ.mol−1. Its symmetry replaces the tetrahedral structure so that its dipole moment is 0 Debye.

Carbon tetrabromide can be used as a solvent for greases, waxes and oils, in the plastics and rubber industries for blow molding and vulcanization, for further use in polymerization, it can also be used as a tranquilizer and as a manufacturing Agrichemical intermediates. As a component of refractory chemicals due to its non-flammability. Due to its high density, it can also be used for the separation of minerals.

Carbon tetrabromide is a highly toxic and irritating organic compound. It is not flammable but has a risk of explosion. After skin contact, contaminated clothing should be removed and the skin should be washed thoroughly with soap and water.

　FoldingStability

　1. Stability: Stable.

2. Incompatible materials: strong oxidants and strong bases.

3. Conditions to avoid contact: light.

4. Hazards of aggregation: No aggregation.

　CollapseFirst aid measures

Skin contact: Take off contaminated clothing and wash skin thoroughly with soap and water.

Eye contact: Immediately lift your eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.

Inhalation: Leave the scene quickly to fresh air. Keep your airway open. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. Seek medical attention.

Ingestion: Drink enough warm water to induce vomiting. Seek medical attention.