Assertion: phosgene | /r/HasProperty | cracked to free chlorine
Facets:
Source sentences:
text: It has been found that phosgene may be separated from boron trichloride by passing the stream of boron trichloride containing the phosgene impurity over a carbon catalyst maintained at a temperature of between about 300 and 700 C., at which temperature the phosgene will be cracked to carbon monoxide and free chlorine.
text: A process for purifying a stream consisting primarily of boron trichloride and containing phosgene as an impurity comprising: passing a stream containing boron trichloride and phosgene as an impurity over a catalyst consisting of carbon maintained at a temperature of between about 300 C. and 700 C. whereby said phosgene is cracked to carbon monoxide and free chlorine and removing the carbon monoxide and chlorine so produced from the boron trichloride stream whereby to produce substantially pure boron trichloride.