Assertion: calcium chloride | /r/HasProperty | essential
Facets:
value: to this process
type: OTHER
value: to avoid skin contact
type: PURPOSE
Source sentences:
text: It is essential to avoid skin contact with calcium chloride, as it can cause skin irritation.
text: Apparently, calcium chloride is essential to this process, as one of the steps of the lab involves adding 250 microliters of it into a solution containing E. coli.