Assertion: pyridine's use | /r/HasProperty | over 90% of the total
Facets:
Source sentences:
text: The principal use of pyridine, alkyl derivs., accounting for over 90% of the total reported use quantity in 2006, was in the formulation of corrosion inhibitors used in oil and gas wells and pipelines at a concentration of 0.3-46% by weight (Environment Canada 2010a).