Assertion: potassium | /r/ObjectUse | used in several industrial contexts
Facets:
value: simply 'k'
type: OTHER
value: in glassmaking formulas
type: OTHER
Source sentences:
text: The chemical formula K 2 O (or simply 'K') is used in several industrial contexts: the N-P-K numbers for fertilizers, in cement formulas, and in glassmaking formulas.