Assertion: carbon tetrachloride | /r/ObjectUse | used in proton nmr spectroscopy
Facets:
value: historically
type: TEMPORAL
Source sentences:
text: Because carbon tetrachloride does not have any hydrogen atoms, it was historically used in proton NMR spectroscopy.
text: Because carbon tetrachloride does not have any hydrogen atoms, it was historically used in proton NMR spectroscopy.
text: Because carbon tetrachloride does not have any hydrogen atoms, it was historically used in proton NMR spectroscopy.
text: Because carbon tetrachloride does not have any hydrogen atoms, it was historically used in proton NMR spectroscopy.
text: Because carbon tetrachloride does not have any hydrogen atoms, it was historically used in proton NMR spectroscopy.