Assertion: chlorobenzene | /r/HasProperty | the trichloride of a metal
Facets:
value: usually
type: DEGREE
Source sentences:
text: It has been manufactured on a large industrial scale in Europe and the United States since the early 20th century by the reaction of benzene with chlorine in the presence of catalysts, usually the trichloride of a metal such as iron, antimony, or aluminum.