{"id":"S2006007323","label":"Polyphosphoric acid","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2006007323","normalized_label":"polyphosphoric acid","broader":["http://id.loc.gov/authorities/subjects/sh85101114"],"aliases":["PPA (Polyphosphoric acid)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2006007323","provider":"lcsh","revision":"1c2d9ea9a61f91fe","taxonomy_revision":"f050b5d4780b1289","title":"Polyphosphoric acid","url":"/topics/S2006007323","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900873867407811104","address_version":"morton4x16-v1","coordinates":[0,478,17656,27648],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}