31. Dichlorocarbene can also be obtained by dechlorination of carbon tetrachloride with magnesium with ultrasound chemistry. 32. Hafnium tetrachloride is volatile and can therefore easily be separated from the involatile zirconium trihalide. 33. In an Appel reaction, carbon tetrachloride is used to generate alkyl chlorides from alcohols. 34. The titanium tetrachloride is purified by distillation. 35. As was typical of this era, some glass extinguishers contained the toxic carbon tetrachloride . 36. PeCB can be produced as a byproduct of the manufacture of carbon tetrachloride and benzene. 37. Kroll devised ways of reducing titanium tetrachloride ( TiCl 4 ) into its metal form. 38. The reaction is catalyzed by triphenylchromium tri-tetrahydrofuranate or with triisobutylaluminium and titanium tetrachloride . 39. Although some of Brookhaven's contamination is radioactive, carbon tetrachloride is not a radionuclide. 40. Fuchsine was first prepared by August Wilhelm von Hofmann from aniline and carbon tetrachloride in 1858.
