Assertion: acetylene | /r/HasProperty | introduced as commercial illuminant
Facets:
value: in england
type: LOCATION
Source sentences:
text: When acetylene was first introduced as a commercial illuminant in England, very small union jet nipples were utilized for its consumption, but after burning for a short time these nipples began to carbonize, the flame being distorted, and then smoking occurred with the formation of a heavy deposit of soot.