Assertion: carbon disulfide | /r/HasProperty | manufactured by the reaction of charcoal
Facets:
value: with sulfur vapour
type: OTHER
value: for many years
type: TEMPORAL
Source sentences:
text: For many years carbon disulfide was manufactured by the reaction of charcoal with sulfur vapour at temperatures of 750°–1,000° C (1,400°–1,800° F), but, by the mid-20th century, that process had been superseded, especially in the United States, by one based on the reaction of natural gas (principally methane) with sulfur.