Assertion: carbon tetrachloride's use | /r/HasProperty | advantageous
Facets:
value: for practical purposes
type: PURPOSE
Source sentences:
text: It is known to the art that an excess of chlorine over the theoretical proportion is favorable to total chlorination react-ions of .the type in hand, and for practical purposes the use of an excess on the order of 10 to 40 per cent is advantageous in preventing the formation of undesired by-products, such as hexachlorbenzene and tars.