Matches in SemOpenAlex for { <https://semopenalex.org/work/W2380657498> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W2380657498 abstract "Humic acid isolated from weathered coal was transformed into its calcium andbarium salts and its methyl and silyl derivatives with the intention to block eitherthe reactive earboxyl groups or the phenolic hydroxyl groups or both in the molecules.The humic acid and these various derivatives were ammoniated with dried ammoniaat ambient temperature,and were then characterized and studied by infrared spectro-scopy,nuclear magnetic resonance spectroscopy,chemical reaction of model com-pounds and elemental analyses.It was found that ammonia reacts chiefly with thecarboxyl groups and selectively with the ortho phenolic dihydroxyl groups in thehumic acid molecules.On prolonged heating at above 100℃,cyclic anhydride willbe formed in the humic acid molecule via the dehydration of adjacent carboxyl groups,while the ammonium carboxylate groups in the ammonium humate will be transformedinto amide groups and carboxyl groups simultaneously.On the ground of theseresults,several notions are proposed which may be of practical value for modifying themanufacturing process and improving the quality of humic acid fertilizer,ammoniumhumate." @default.
- W2380657498 created "2016-06-24" @default.
- W2380657498 creator A5060331137 @default.
- W2380657498 date "1978-01-01" @default.
- W2380657498 modified "2023-09-23" @default.
- W2380657498 title "A STUDY OF THE MECHANISM OF AMMONIATION OF HUMIC ACID" @default.
- W2380657498 hasPublicationYear "1978" @default.
- W2380657498 type Work @default.
- W2380657498 sameAs 2380657498 @default.
- W2380657498 citedByCount "0" @default.
- W2380657498 crossrefType "journal-article" @default.
- W2380657498 hasAuthorship W2380657498A5060331137 @default.
- W2380657498 hasConcept C13965031 @default.
- W2380657498 hasConcept C153642686 @default.
- W2380657498 hasConcept C178790620 @default.
- W2380657498 hasConcept C185592680 @default.
- W2380657498 hasConcept C2776382133 @default.
- W2380657498 hasConcept C2778074193 @default.
- W2380657498 hasConcept C2778439535 @default.
- W2380657498 hasConcept C2778769901 @default.
- W2380657498 hasConcept C2779870022 @default.
- W2380657498 hasConcept C2780560099 @default.
- W2380657498 hasConcept C2780965034 @default.
- W2380657498 hasConcept C32909587 @default.
- W2380657498 hasConcept C55493867 @default.
- W2380657498 hasConceptScore W2380657498C13965031 @default.
- W2380657498 hasConceptScore W2380657498C153642686 @default.
- W2380657498 hasConceptScore W2380657498C178790620 @default.
- W2380657498 hasConceptScore W2380657498C185592680 @default.
- W2380657498 hasConceptScore W2380657498C2776382133 @default.
- W2380657498 hasConceptScore W2380657498C2778074193 @default.
- W2380657498 hasConceptScore W2380657498C2778439535 @default.
- W2380657498 hasConceptScore W2380657498C2778769901 @default.
- W2380657498 hasConceptScore W2380657498C2779870022 @default.
- W2380657498 hasConceptScore W2380657498C2780560099 @default.
- W2380657498 hasConceptScore W2380657498C2780965034 @default.
- W2380657498 hasConceptScore W2380657498C32909587 @default.
- W2380657498 hasConceptScore W2380657498C55493867 @default.
- W2380657498 hasOpenAccess W2380657498 @default.
- W2380657498 hasRelatedWork W1251300728 @default.
- W2380657498 hasRelatedWork W127320881 @default.
- W2380657498 hasRelatedWork W148960103 @default.
- W2380657498 hasRelatedWork W2017075766 @default.
- W2380657498 hasRelatedWork W2060272586 @default.
- W2380657498 hasRelatedWork W2065654500 @default.
- W2380657498 hasRelatedWork W2070291894 @default.
- W2380657498 hasRelatedWork W2073084378 @default.
- W2380657498 hasRelatedWork W2076014798 @default.
- W2380657498 hasRelatedWork W2124253730 @default.
- W2380657498 hasRelatedWork W2240144599 @default.
- W2380657498 hasRelatedWork W2410325339 @default.
- W2380657498 hasRelatedWork W2818795602 @default.
- W2380657498 hasRelatedWork W2829479818 @default.
- W2380657498 hasRelatedWork W2834987188 @default.
- W2380657498 hasRelatedWork W2858688928 @default.
- W2380657498 hasRelatedWork W2864369430 @default.
- W2380657498 hasRelatedWork W2877009373 @default.
- W2380657498 hasRelatedWork W3092405370 @default.
- W2380657498 hasRelatedWork W3100870173 @default.
- W2380657498 isParatext "false" @default.
- W2380657498 isRetracted "false" @default.
- W2380657498 magId "2380657498" @default.
- W2380657498 workType "article" @default.