Assertion: red mud | /r/HasProperty | the name
Facets:
value: for a quebracho-based mixture
type: OTHER
Source sentences:
text: Red mud was the name for a Quebracho-based mixture, named after the color of the red tannic acid salts; it was commonly used in the 1940s to 1950s, then was made obsolete when lignosulfonates became available.