6533b873fe1ef96bd12d4e51
RESEARCH PRODUCT
Decarboxylation and alkaline colour fading reactions in presence of humic substances.
Maris KlavinsKristı̄ne Babresubject
Models MolecularReaction mechanismEnvironmental Engineeringgenetic structuresDecarboxylationHealth Toxicology and MutagenesisInorganic chemistryCarboxylic AcidsColorDecarboxylationCatalysisCatalysischemistry.chemical_compoundSurface-Active AgentsHydroxidesRosaniline DyesEnvironmental ChemistryHumic acidCrystal violetMalachite greenChemical decompositionHumic SubstancesMicelleschemistry.chemical_classificationPublic Health Environmental and Occupational HealthTemperatureGeneral MedicineGeneral ChemistryReaction inhibitorHydrogen-Ion ConcentrationPollutionKineticschemistryGentian Violetdescription
Humic substances (HSs) can substantially influence velocity of reactions in the environment as shown on example of decarboxylation and alkaline colour (e.g., malachite green and crystal violet) fading reactions. In colour fading and decarboxylation reactions of 6-nitrobenzisoxazole-3-carboxylic acid HS act as inhibitors, but additions of surfactants change the pattern of reaction. The inhibitory activity of HSs much depends on their origin. The velocity of studied reactions depends also on pH, temperature and concentration of HS used. Possible micellar catalysis mechanism has been suggested.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-11-01 | Chemosphere |