Assertion: insoluble lubricant | /r/ObjectUse | used in tabletting process
Facets:
value: heretofore
type: TEMPORAL
Source sentences:
text: While not only tending to inhibit the rate of dissolution of the water soluble effervescent tablets in water, the insoluble lubricants as have been used heretofore in the tabletting process have also caused the resulting solutions to appear cloudy and unclear.