Assertion: borax's use | /r/HasProperty | as flux
Facets:
value: by goldsmiths
type: OTHER
value: mostly
type: DEGREE
Source sentences:
text: Another important use is as a flux to disintegrate undesired metal oxide stains on metals, and for this reason it is also used in welding.
text: Its use in the early seventeenth century was mostly as a flux by goldsmiths, which implies that it was a low volume commodity.