Assertion: phosphoric acid | /r/HasProperty | free
Facets:
value: from emulsion-forming organic contaminants
type: OTHER
value: from thioester
type: TEMPORAL
Source sentences:
text: The phosphoric acid was free from thioester and contained less than 0.0001 weight % each of Cd and As.
text: A disadvantage encountered with this process resides in the need to use phosphoric acid which has been freed from emulsion-forming organic contaminants, i.e. prepurified.